{"id":865,"date":"2026-04-25T11:06:55","date_gmt":"2026-04-25T05:36:55","guid":{"rendered":"https:\/\/qsh.in\/boards\/wbbse\/?p=865"},"modified":"2026-04-25T11:59:20","modified_gmt":"2026-04-25T06:29:20","slug":"e-mc2-interactive-lab-quiz","status":"publish","type":"post","link":"https:\/\/qsh.in\/boards\/wbbse\/class-x\/physical-science\/e-mc2-interactive-lab-quiz\/","title":{"rendered":"\u0986\u0987\u09a8\u09b8\u09cd\u099f\u09be\u0987\u09a8\u09c7\u09b0 \u09ad\u09b0 \u0993 \u09b6\u0995\u09cd\u09a4\u09bf\u09b0 \u09a4\u09c1\u09b2\u09cd\u09af\u09a4\u09be \u09b8\u09ae\u09c0\u0995\u09b0\u09a3 (E=mc\u00b2)"},"content":{"rendered":"<p>\u09aa\u09cd\u09b0\u09bf\u09af\u09bc \u099b\u09be\u09a4\u09cd\u09b0\u099b\u09be\u09a4\u09cd\u09b0\u09c0\u09b0\u09be, \u09ad\u09cc\u09a4\u09ac\u09bf\u099c\u09cd\u099e\u09be\u09a8\u09c7\u09b0 \u09a4\u09c3\u09a4\u09c0\u09af\u09bc \u0985\u09a7\u09cd\u09af\u09be\u09af\u09bc \u2018\u09b0\u09be\u09b8\u09be\u09af\u09bc\u09a8\u09bf\u0995 \u0997\u09a3\u09a8\u09be\u2019-\u09a4\u09c7 \u0986\u09ae\u09b0\u09be \u09ac\u09bf\u099c\u09cd\u099e\u09be\u09a8\u09c0 \u0985\u09cd\u09af\u09be\u09b2\u09ac\u09be\u09b0\u09cd\u099f \u0986\u0987\u09a8\u09b8\u09cd\u099f\u09be\u0987\u09a8\u09c7\u09b0 \u098f\u0995\u099f\u09bf \u09af\u09c1\u0997\u09be\u09a8\u09cd\u09a4\u0995\u09be\u09b0\u09c0 \u0986\u09ac\u09bf\u09b7\u09cd\u0995\u09be\u09b0 \u09b8\u09ae\u09cd\u09aa\u09b0\u09cd\u0995\u09c7 \u099c\u09c7\u09a8\u09c7\u099b\u09bf\u2014 \u09ad\u09b0 \u0993 \u09b6\u0995\u09cd\u09a4\u09bf\u09b0 \u09a4\u09c1\u09b2\u09cd\u09af\u09a4\u09be \u09b8\u09ae\u09c0\u0995\u09b0\u09a3, <strong>E = mc<sup>2<\/sup><\/strong>\u0964 <\/p>\n<p>    \u09ac\u0987\u09af\u09bc\u09c7\u09b0 \u09aa\u09be\u09a4\u09be\u09af\u09bc \u09b8\u09ae\u09c0\u0995\u09b0\u09a3\u099f\u09bf \u09a6\u09c7\u0996\u09a4\u09c7 \u0996\u09c1\u09ac \u09b8\u09b9\u099c \u09ae\u09a8\u09c7 \u09b9\u09b2\u09c7\u0993, \u098f\u099f\u09bf \u0995\u09c0\u09ad\u09be\u09ac\u09c7 \u0995\u09be\u099c \u0995\u09b0\u09c7 \u098f\u09ac\u0982 \u0997\u09be\u09a3\u09bf\u09a4\u09bf\u0995 \u09b8\u09ae\u09b8\u09cd\u09af\u09be\u09af\u09bc \u098f\u0995\u09c7 \u0995\u09c0\u09ad\u09be\u09ac\u09c7 \u09b8\u09be\u099c\u09be\u09a4\u09c7 \u09b9\u09af\u09bc, \u09a4\u09be \u09a8\u09bf\u09af\u09bc\u09c7 \u0985\u09a8\u09c7\u0995\u09c7\u09b0\u0987 \u09ae\u09a8\u09c7 \u09ad\u09af\u09bc \u09a5\u09be\u0995\u09c7\u0964 \u09a4\u09cb\u09ae\u09be\u09a6\u09c7\u09b0 \u098f\u0987 \u09ad\u09af\u09bc \u09a6\u09c2\u09b0 \u0995\u09b0\u09a4\u09c7 \u098f\u09ac\u0982 \u09ac\u09bf\u09b7\u09af\u09bc\u099f\u09bf\u0995\u09c7 \u0986\u09b0\u0993 \u09ae\u099c\u09be\u09a6\u09be\u09b0 \u0995\u09b0\u09c7 \u09a4\u09c1\u09b2\u09a4\u09c7 \u0986\u09ae\u09b0\u09be \u09a4\u09c8\u09b0\u09bf \u0995\u09b0\u09c7\u099b\u09bf <strong>\u201cE=mc<sup>2<\/sup> \u09b2\u09cd\u09af\u09be\u09ac \u098f\u09ac\u0982 \u09aa\u09b0\u09c0\u0995\u09cd\u09b7\u09be\u201d<\/strong> \u09a8\u09be\u09ae\u0995 \u098f\u0995\u099f\u09bf \u09ac\u09bf\u09b6\u09c7\u09b7 \u0987\u09a8\u09cd\u099f\u09be\u09b0\u09c7\u0995\u09cd\u099f\u09bf\u09ad \u0997\u09c7\u09ae! <\/p>\n<p>    \u0997\u09c7\u09ae\u099f\u09bf\u09a4\u09c7 \u09a6\u09c1\u099f\u09bf \u0985\u09b8\u09be\u09a7\u09be\u09b0\u09a3 \u09ae\u09cb\u09a1 \u09b0\u09af\u09bc\u09c7\u099b\u09c7, \u09af\u09be \u09a4\u09cb\u09ae\u09be\u09a6\u09c7\u09b0 \u09a7\u09be\u09aa\u09c7 \u09a7\u09be\u09aa\u09c7 \u09b8\u09c2\u09a4\u09cd\u09b0\u099f\u09bf \u09b6\u09bf\u0996\u09a4\u09c7 \u098f\u09ac\u0982 \u0985\u09a8\u09c1\u09b6\u09c0\u09b2\u09a8 \u0995\u09b0\u09a4\u09c7 \u09b8\u09be\u09b9\u09be\u09af\u09cd\u09af \u0995\u09b0\u09ac\u09c7\u0964<\/p>\n<h2>\u09e7. \u09b6\u09c7\u0996\u09be\u09b0 \u09ae\u09cb\u09a1 (Learning Mode)<\/h2>\n<p>    \u098f\u0987 \u09ae\u09cb\u09a1\u099f\u09bf \u09a4\u09cb\u09ae\u09be\u09a6\u09c7\u09b0 \u098f\u0995\u099f\u09bf \u09ad\u09be\u09b0\u09cd\u099a\u09c1\u09af\u09bc\u09be\u09b2 \u09b2\u09cd\u09af\u09be\u09ac\u09c7\u09b0 \u09ae\u09a4\u09cb \u0995\u09be\u099c \u0995\u09b0\u09ac\u09c7\u0964 <\/p>\n<ul>\n<li>\u098f\u0996\u09be\u09a8\u09c7 \u09a4\u09cb\u09ae\u09b0\u09be <strong>m (\u09ad\u09b0)<\/strong>-\u098f\u09b0 \u09ac\u0995\u09cd\u09b8\u09c7 \u09af\u09c7\u0995\u09cb\u09a8\u09cb \u09ad\u09b0\u09c7\u09b0 \u09ae\u09be\u09a8 (\u0995\u09bf\u09b2\u09cb\u0997\u09cd\u09b0\u09be\u09ae\u09c7) \u09ac\u09b8\u09be\u09a4\u09c7 \u09aa\u09be\u09b0\u09ac\u09c7\u0964<\/li>\n<li>\u2018\u09b6\u0995\u09cd\u09a4\u09bf \u0997\u09a3\u09a8\u09be \u0995\u09b0\u09cb\u2019 \u09ac\u09be\u099f\u09a8\u09c7 \u0995\u09cd\u09b2\u09bf\u0995 \u0995\u09b0\u09b2\u09c7\u0987 \u09ae\u09cd\u09af\u09be\u099c\u09bf\u0995! \u0997\u09c7\u09ae\u099f\u09bf \u09a4\u09cb\u09ae\u09be\u09a6\u09c7\u09b0 <strong>\u09a7\u09be\u09aa\u09c7 \u09a7\u09be\u09aa\u09c7 \u09a6\u09c7\u0996\u09bf\u09af\u09bc\u09c7 \u09a6\u09c7\u09ac\u09c7<\/strong> \u0995\u09c0\u09ad\u09be\u09ac\u09c7 \u09ad\u09b0\u0995\u09c7 \u0986\u09b2\u09cb\u09b0 \u09ac\u09c7\u0997\u09c7\u09b0 \u09ac\u09b0\u09cd\u0997\u09c7\u09b0 (9 \u00d7 10<sup>16<\/sup>) \u09b8\u09be\u09a5\u09c7 \u0997\u09c1\u09a3 \u0995\u09b0\u09c7 \u09ae\u09cb\u099f \u09b6\u0995\u09cd\u09a4\u09bf (E) \u09ac\u09c7\u09b0 \u0995\u09b0\u09a4\u09c7 \u09b9\u09af\u09bc\u0964<\/li>\n<li>\u09ab\u09b2\u09be\u09ab\u09b2\u099f\u09bf \u09a4\u09cb\u09ae\u09b0\u09be \u09b6\u0995\u09cd\u09a4\u09bf\u09b0 \u09aa\u09cd\u09b0\u09ae\u09be\u09a3 \u098f\u0995\u0995 \u2018\u099c\u09c1\u09b2\u2019 (Joules)-\u098f \u09aa\u09c7\u09af\u09bc\u09c7 \u09af\u09be\u09ac\u09c7\u0964 \u098f\u099f\u09bf \u09a4\u09cb\u09ae\u09be\u09a6\u09c7\u09b0 \u0985\u0999\u09cd\u0995\u09c7\u09b0 \u09b2\u099c\u09bf\u0995 \u09ac\u09c1\u099d\u09a4\u09c7 \u09a6\u09be\u09b0\u09c1\u09a3\u09ad\u09be\u09ac\u09c7 \u09b8\u09be\u09b9\u09be\u09af\u09cd\u09af \u0995\u09b0\u09ac\u09c7\u0964<\/li>\n<\/ul>\n<h2>\u09e8. \u09aa\u09b0\u09c0\u0995\u09cd\u09b7\u09be\u09b0 \u09ae\u09cb\u09a1 (Testing Mode)<\/h2>\n<p>    \u09b6\u09c7\u0996\u09be \u09a4\u09cb \u09b9\u09b2\u09cb, \u098f\u09ac\u09be\u09b0 \u09a8\u09bf\u099c\u09c7\u0995\u09c7 \u09af\u09be\u099a\u09be\u0987 \u0995\u09b0\u09be\u09b0 \u09aa\u09be\u09b2\u09be! \u09aa\u09b0\u09c0\u0995\u09cd\u09b7\u09be\u09b0 \u09ae\u09cb\u09a1\u09c7 \u09a4\u09cb\u09ae\u09be\u09a6\u09c7\u09b0 \u099c\u09a8\u09cd\u09af \u09b0\u09af\u09bc\u09c7\u099b\u09c7 \u0995\u09bf\u099b\u09c1 \u09ae\u099c\u09be\u09b0 \u098f\u09ac\u0982 \u09ac\u09c1\u09a6\u09cd\u09a7\u09bf\u09b0 \u09aa\u09cd\u09b0\u09b6\u09cd\u09a8\u0964<\/p>\n<ul>\n<li>\u09aa\u09cd\u09b0\u09a4\u09bf\u099f\u09bf \u09aa\u09cd\u09b0\u09b6\u09cd\u09a8\u09c7 \u09a4\u09cb\u09ae\u09be\u09a6\u09c7\u09b0 \u098f\u0995\u099f\u09bf \u09a8\u09bf\u09b0\u09cd\u09a6\u09bf\u09b7\u09cd\u099f \u09aa\u09b0\u09bf\u09b8\u09cd\u09a5\u09bf\u09a4\u09bf\u09b0 \u0995\u09a5\u09be \u09ac\u09b2\u09be \u09b9\u09ac\u09c7 (\u09af\u09c7\u09ae\u09a8: \u09ad\u09b0 2 kg \u09b9\u09b2\u09c7 \u09b8\u09ae\u09c0\u0995\u09b0\u09a3\u099f\u09bf \u0995\u09c0\u09ad\u09be\u09ac\u09c7 \u09b8\u09be\u099c\u09be\u09ac\u09c7?)\u0964<\/li>\n<li>\u09a4\u09cb\u09ae\u09be\u09a6\u09c7\u09b0 \u0995\u09be\u099c \u09b9\u09ac\u09c7 \u09a8\u09bf\u099a\u09c7\u09b0 \u09ab\u09be\u0981\u0995\u09be \u09ac\u0995\u09cd\u09b8\u0997\u09c1\u09b2\u09cb\u09a4\u09c7 <strong>\u09b8\u09a0\u09bf\u0995 \u09ae\u09be\u09a8 \u09ac\u09be \u09aa\u09cd\u09b0\u09a4\u09c0\u0995 (E, m, c, 2)<\/strong> \u099f\u09be\u0987\u09aa \u0995\u09b0\u09c7 \u09b8\u09ae\u09cd\u09aa\u09c2\u09b0\u09cd\u09a3 \u09b8\u09ae\u09c0\u0995\u09b0\u09a3\u099f\u09bf \u09a4\u09c8\u09b0\u09bf \u0995\u09b0\u09be\u0964<\/li>\n<li>\u0989\u09a4\u09cd\u09a4\u09b0 \u09af\u09be\u099a\u09be\u0987 \u0995\u09b0\u09be\u09b0 \u09aa\u09b0 \u0997\u09c7\u09ae\u099f\u09bf <strong>\u09b8\u09ac\u09c1\u099c (\u09b8\u09a0\u09bf\u0995)<\/strong> \u098f\u09ac\u0982 <strong>\u09b2\u09be\u09b2 (\u09ad\u09c1\u09b2)<\/strong> \u09b0\u0999\u09c7\u09b0 \u09ae\u09be\u09a7\u09cd\u09af\u09ae\u09c7 \u09a4\u09cb\u09ae\u09be\u09a6\u09c7\u09b0 \u099c\u09be\u09a8\u09bf\u09af\u09bc\u09c7 \u09a6\u09c7\u09ac\u09c7 \u0995\u09cb\u09a5\u09be\u09af\u09bc \u09ad\u09c1\u09b2 \u09b9\u09af\u09bc\u09c7\u099b\u09c7\u0964 \u09b8\u09be\u09a5\u09c7 \u09b8\u09be\u09a5\u09c7 \u09aa\u09c7\u09af\u09bc\u09c7 \u09af\u09be\u09ac\u09c7 \u09b8\u09c1\u09a8\u09cd\u09a6\u09b0 \u09ac\u09cd\u09af\u09be\u0996\u09cd\u09af\u09be\u0993!<\/li>\n<\/ul>\n<h2>\u0995\u09c0\u09ad\u09be\u09ac\u09c7 \u0996\u09c7\u09b2\u09ac\u09c7?<\/h2>\n<p>    \u09a8\u09bf\u099a\u09c7\u09b0 \u0997\u09c7\u09ae \u09ac\u0995\u09cd\u09b8\u099f\u09bf\u09a4\u09c7 \u09aa\u09cd\u09b0\u09a5\u09ae\u09c7 <strong>\u2018\u09b6\u09c7\u0996\u09be\u09b0 \u09ae\u09cb\u09a1\u2019<\/strong> \u09ac\u09cd\u09af\u09ac\u09b9\u09be\u09b0 \u0995\u09b0\u09c7 \u0995\u09af\u09bc\u09c7\u0995\u099f\u09bf \u09ad\u09bf\u09a8\u09cd\u09a8 \u09ad\u09bf\u09a8\u09cd\u09a8 \u09ad\u09b0 \u09ac\u09b8\u09bf\u09af\u09bc\u09c7 \u09b6\u0995\u09cd\u09a4\u09bf\u09b0 \u09ae\u09be\u09a8 \u09ac\u09c7\u09b0 \u0995\u09b0\u09c7 \u09a6\u09c7\u0996\u09cb\u0964 \u098f\u09b0\u09aa\u09b0 <strong>\u2018\u09aa\u09b0\u09c0\u0995\u09cd\u09b7\u09be\u09b0 \u09ae\u09cb\u09a1\u2019<\/strong>-\u098f \u0997\u09bf\u09af\u09bc\u09c7 \u09ea\u099f\u09bf \u09aa\u09cd\u09b0\u09b6\u09cd\u09a8\u09c7\u09b0 \u09b8\u09a0\u09bf\u0995 \u0989\u09a4\u09cd\u09a4\u09b0 \u09a6\u09bf\u09af\u09bc\u09c7 \u09aa\u09c1\u09b0\u09cb \u09a8\u09ae\u09cd\u09ac\u09b0 (4\/4) \u09a4\u09c1\u09b2\u09c7 \u09a8\u09be\u0993\u0964 <\/p>\n<p>    \u09ac\u09bf\u099c\u09cd\u099e\u09be\u09a8 \u09ae\u09c1\u0996\u09b8\u09cd\u09a5 \u0995\u09b0\u09be\u09b0 \u09ac\u09bf\u09b7\u09af\u09bc \u09a8\u09af\u09bc, \u09ac\u09bf\u099c\u09cd\u099e\u09be\u09a8 \u09b9\u09b2\u09cb \u09ac\u09c1\u099d\u09c7 \u09ae\u099c\u09be \u0995\u09b0\u09c7 \u09b6\u09c7\u0996\u09be\u09b0 \u09ac\u09bf\u09b7\u09af\u09bc\u0964 \u099a\u09b2\u09cb, \u09b6\u09c1\u09b0\u09c1 \u0995\u09b0\u09be \u09af\u09be\u0995!<\/p>\n<style>\n        #h5-game-wrapper-69fb7d11b06df { width: 100%; max-width: 800px; margin: 1.5em auto; box-shadow: 0 5px 20px rgba(0,0,0,0.1); border-radius: 8px; overflow: hidden; position: relative; background: #fff; }\n        #h5-game-wrapper-69fb7d11b06df #game-container { width: 100% !important; height: auto !important; aspect-ratio: 690 \/ 520; margin: 0 !important; border: none !important; max-width: 100vw; box-sizing: border-box; }\n        #h5-game-wrapper-69fb7d11b06df .h5g-mobile-input { position: absolute; top: -9999px; left: -9999px; width: 1px; height: 1px; opacity: 0; border: none; pointer-events: none; z-index: -1; }\n    <\/style><style>.emc2-header { background-color: #1a73e8; color: white; padding: 20px; text-align: center; border-radius: 10px 10px 0 0; }\r\n.emc2-header h2 { margin: 0 0 5px 0; font-size: 22px; color: white; }\r\n.emc2-header p { margin: 0; font-size: 14px; opacity: 0.9; }\r\n\r\n.emc2-tabs { display: flex; background-color: #e0e0e0; }\r\n.emc2-tab-btn {\r\n    flex: 1; padding: 12px; border: none; background: none;\r\n    font-size: 16px; font-weight: bold; cursor: pointer; transition: all 0.3s ease; color: #555;\r\n}\r\n.emc2-tab-btn.active { background-color: white; color: #1a73e8; border-bottom: 3px solid #1a73e8; }\r\n\r\n.emc2-section { padding: 20px; background: white; border-radius: 0 0 10px 10px; border: 1px solid #ddd; border-top: none;}\r\n.emc2-card { background: white; padding: 10px; }\r\n\r\n.emc2-input-group { margin: 15px 0; }\r\n.emc2-input-group label { display: block; margin-bottom: 8px; font-weight: bold; color:#333; }\r\n.emc2-input-group input {\r\n    width: 100%; padding: 12px; font-size: 16px; color:#333;\r\n    border: 2px solid #ccc; border-radius: 5px; box-sizing: border-box; transition: border-color 0.3s;\r\n}\r\n.emc2-input-group input:focus { border-color: #1a73e8; outline: none; }\r\n\r\n.equation-builder-container { background-color: #f8f9fa; padding: 15px; border-radius: 8px; border: 1px dashed #bbb; margin-bottom: 20px; }\r\n.equation-flex {\r\n    display: flex; align-items: center; justify-content: center;\r\n    font-size: 20px; font-weight: bold; margin-top: 10px; flex-wrap: wrap;\r\n}\r\n.eq-input {\r\n    width: 70px; height: 45px; text-align: center; font-size: 16px; font-weight: bold;\r\n    border: 2px solid #ccc; border-radius: 5px; margin: 0 3px; outline: none; transition: 0.3s; color:#333;\r\n}\r\n.eq-input-small {\r\n    width: 35px; height: 35px; text-align: center; font-size: 14px; font-weight: bold;\r\n    border: 2px solid #ccc; border-radius: 5px; outline: none; transition: 0.3s; color:#333;\r\n}\r\n.eq-input:focus, .eq-input-small:focus { border-color: #1a73e8; }\r\n.eq-symbol { margin: 0 5px; color: #555; }\r\n.eq-correct { border-color: #34a853 !important; background-color: #e6f4ea; color: #137333; }\r\n.eq-wrong { border-color: #ea4335 !important; background-color: #fce8e6; color: #c5221f; }\r\n\r\n.emc2-action-btn {\r\n    width: 100%; padding: 12px; background-color: #34a853; color: white; border: none; border-radius: 5px;\r\n    font-size: 16px; font-weight: bold; cursor: pointer; margin-top: 10px; transition: background 0.3s;\r\n}\r\n.emc2-action-btn.secondary { background-color: #1a73e8; }\r\n.emc2-action-btn:hover { filter: brightness(1.1); color:white; }\r\n.emc2-action-btn:disabled { background-color: #ccc; cursor: not-allowed; }\r\n\r\n.emc2-result-box {\r\n    margin-top: 20px; padding: 15px; background-color: #f1f3f4; border-left: 4px solid #1a73e8; border-radius: 4px; font-size: 15px; line-height: 1.5; color:#333;\r\n}\r\n.emc2-final-result {\r\n    margin-top: 10px; padding: 10px; background-color: #e6f4ea; color: #137333; border-radius: 4px; font-size: 18px; text-align: center;\r\n}\r\n.emc2-score-board { text-align: right; border-bottom: 2px solid #eee; padding-bottom: 10px; margin-bottom: 15px; color: #1a73e8; }\r\n.emc2-question-box {\r\n    background-color: #fff8e1; border: 1px solid #ffecb3; padding: 15px; border-radius: 5px; font-weight: bold; margin-bottom: 15px; font-size: 16px; color:#333;\r\n}<\/style><div id=\"h5-game-wrapper-69fb7d11b06df\"><div id=\"game-container\"><div class=\"emc2-header\">\r\n    <h2>E=mc\u00b2 \u09b2\u09cd\u09af\u09be\u09ac \u098f\u09ac\u0982 \u09aa\u09b0\u09c0\u0995\u09cd\u09b7\u09be<\/h2>\r\n    <p>\u09b8\u09b9\u099c\u09c7 \u09b6\u09c7\u0996\u09cb \u098f\u09ac\u0982 \u09a8\u09bf\u099c\u09c7\u0995\u09c7 \u09af\u09be\u099a\u09be\u0987 \u0995\u09b0\u09cb<\/p>\r\n<\/div>\r\n\r\n<div class=\"emc2-tabs\">\r\n    <button id=\"tab-learn\" class=\"emc2-tab-btn active\">\u09b6\u09c7\u0996\u09be\u09b0 \u09ae\u09cb\u09a1<\/button>\r\n    <button id=\"tab-test\" class=\"emc2-tab-btn\">\u09aa\u09b0\u09c0\u0995\u09cd\u09b7\u09be\u09b0 \u09ae\u09cb\u09a1<\/button>\r\n<\/div>\r\n\r\n<div id=\"emc2-learn-section\" class=\"emc2-section active\">\r\n    <div class=\"emc2-card\">\r\n        <h3>\u0995\u09c0\u09ad\u09be\u09ac\u09c7 \u0995\u09be\u099c \u0995\u09b0\u09c7?<\/h3>\r\n        <p><strong>E = mc\u00b2<\/strong> \u09b8\u09c2\u09a4\u09cd\u09b0\u09c7: <strong>E<\/strong> = \u09b6\u0995\u09cd\u09a4\u09bf (\u099c\u09c1\u09b2), <strong>m<\/strong> = \u09ad\u09b0 (\u0995\u09c7\u099c\u09bf), <strong>c<\/strong> = \u0986\u09b2\u09cb\u09b0 \u09ac\u09c7\u0997 (3 \u00d7 10\u2078 \u09ae\u09bf\/\u09b8\u09c7)\u0964<\/p>\r\n        \r\n        <div class=\"emc2-input-group\">\r\n            <label for=\"learn-mass\">\u09af\u09c7\u0995\u09cb\u09a8\u09cb \u098f\u0995\u099f\u09bf \u09ad\u09b0 (m) \u09b2\u09c7\u0996\u09cb (\u0995\u09c7\u099c\u09bf\u09a4\u09c7):<\/label>\r\n            <input type=\"number\" id=\"learn-mass\" value=\"1\" min=\"0.001\" step=\"any\">\r\n        <\/div>\r\n        \r\n        <button id=\"btn-calculate\" class=\"emc2-action-btn\">\u09b6\u0995\u09cd\u09a4\u09bf (E) \u0997\u09a3\u09a8\u09be \u0995\u09b0\u09cb<\/button>\r\n        \r\n        <div id=\"learn-result\" class=\"emc2-result-box\" style=\"display: none;\">\r\n            <h4>\u09a7\u09be\u09aa\u09c7 \u09a7\u09be\u09aa\u09c7 \u0997\u09a3\u09a8\u09be:<\/h4>\r\n            <p><strong>\u09a7\u09be\u09aa \u09e7:<\/strong> \u09b8\u09c2\u09a4\u09cd\u09b0\u099f\u09bf \u09b9\u09b2\u09cb, E = m \u00d7 c\u00b2<\/p>\r\n            <p><strong>\u09a7\u09be\u09aa \u09e8:<\/strong> \u09ae\u09be\u09a8 \u09ac\u09b8\u09be\u0987, E = <span id=\"res-m\"><\/span> \u00d7 (3 \u00d7 10\u2078)\u00b2<\/p>\r\n            <p><strong>\u09a7\u09be\u09aa \u09e9:<\/strong> \u0986\u09b2\u09cb\u09b0 \u09ac\u09c7\u0997\u09c7\u09b0 \u09ac\u09b0\u09cd\u0997, E = <span id=\"res-m2\"><\/span> \u00d7 (9 \u00d7 10\u00b9\u2076)<\/p>\r\n            <div class=\"emc2-final-result\">\r\n                <strong>\u09ab\u09b2\u09be\u09ab\u09b2: E = <span id=\"res-e\"><\/span> \u099c\u09c1\u09b2 (Joules)<\/strong>\r\n            <\/div>\r\n        <\/div>\r\n    <\/div>\r\n<\/div>\r\n\r\n<div id=\"emc2-test-section\" class=\"emc2-section\" style=\"display: none;\">\r\n    <div class=\"emc2-card\">\r\n        <div class=\"emc2-score-board\">\r\n            <h3>\u09b8\u09cd\u0995\u09cb\u09b0: <span id=\"current-score\">0<\/span> \/ 4<\/h3>\r\n        <\/div>\r\n        \r\n        <div id=\"quiz-container\">\r\n            <div class=\"emc2-question-box\">\r\n                <p id=\"test-question\">\u09aa\u09cd\u09b0\u09b6\u09cd\u09a8 \u09b2\u09cb\u09a1 \u09b9\u099a\u09cd\u099b\u09c7...<\/p>\r\n                <p id=\"test-hint\" style=\"font-size: 14px; color: #555; font-weight: normal; margin-top: 5px;\"><\/p>\r\n            <\/div>\r\n\r\n            <div class=\"equation-builder-container\">\r\n                <p style=\"text-align: center; font-weight: bold; margin-bottom: 10px;\">\u09a8\u09bf\u099a\u09c7\u09b0 \u09ac\u0995\u09cd\u09b8\u0997\u09c1\u09b2\u09cb\u09a4\u09c7 \u09b8\u09a0\u09bf\u0995 \u09ae\u09be\u09a8 \u09ac\u09be \u09aa\u09cd\u09b0\u09a4\u09c0\u0995 \u09ac\u09b8\u09bf\u09af\u09bc\u09c7 \u09b8\u09ae\u09c0\u0995\u09b0\u09a3\u099f\u09bf \u09b8\u09ae\u09cd\u09aa\u09c2\u09b0\u09cd\u09a3 \u0995\u09b0\u09cb:<\/p>\r\n                <div class=\"equation-flex\">\r\n                    <input type=\"text\" id=\"ans-e\" class=\"eq-input\" placeholder=\"E\">\r\n                    <span class=\"eq-symbol\"> = <\/span>\r\n                    <input type=\"text\" id=\"ans-m\" class=\"eq-input\" placeholder=\"m\">\r\n                    <span class=\"eq-symbol\"> \u00d7 <\/span>\r\n                    <span class=\"eq-symbol\">(<\/span>\r\n                    <input type=\"text\" id=\"ans-c\" class=\"eq-input\" placeholder=\"c\">\r\n                    <span class=\"eq-symbol\">)<\/span>\r\n                    <sup class=\"eq-sup\"><input type=\"text\" id=\"ans-p\" class=\"eq-input-small\" placeholder=\"2\"><\/sup>\r\n                <\/div>\r\n            <\/div>\r\n            \r\n            <button id=\"btn-submit-answer\" class=\"emc2-action-btn\">\u09af\u09be\u099a\u09be\u0987 \u0995\u09b0\u09cb<\/button>\r\n            <button id=\"btn-next-question\" class=\"emc2-action-btn secondary\" style=\"display: none;\">\u09aa\u09b0\u09ac\u09b0\u09cd\u09a4\u09c0 \u09aa\u09cd\u09b0\u09b6\u09cd\u09a8<\/button>\r\n            \r\n            <div id=\"test-feedback\" class=\"emc2-result-box\" style=\"display: none;\"><\/div>\r\n        <\/div>\r\n\r\n        <div id=\"quiz-completed\" style=\"display: none; text-align: center;\">\r\n            <h3>\u09aa\u09b0\u09c0\u0995\u09cd\u09b7\u09be \u09b6\u09c7\u09b7!<\/h3>\r\n            <p style=\"font-size: 20px;\">\u09a4\u09cb\u09ae\u09be\u09b0 \u099a\u09c2\u09a1\u09bc\u09be\u09a8\u09cd\u09a4 \u09b8\u09cd\u0995\u09cb\u09b0: <strong id=\"final-score\" style=\"color: #1a73e8;\"><\/strong><\/p>\r\n            <button id=\"btn-restart-quiz\" class=\"emc2-action-btn\" style=\"margin-top: 15px;\">\u0986\u09ac\u09be\u09b0 \u09aa\u09b0\u09c0\u0995\u09cd\u09b7\u09be \u09a6\u09be\u0993<\/button>\r\n        <\/div>\r\n    <\/div>\r\n<\/div><\/div><\/div><script data-cfasync=\"false\" data-no-optimize=\"1\">\ndocument.addEventListener('DOMContentLoaded', function() {\ntry {\n(function() {\r\n    \/* Constants *\/\r\n    const C_SQUARED = 9e16; \r\n\r\n    \/* Bengali numeral to English numeral mapper *\/\r\n    const bnToEn = {'\u09e6':'0','\u09e7':'1','\u09e8':'2','\u09e9':'3','\u09ea':'4','\u09eb':'5','\u09ec':'6','\u09ed':'7','\u09ee':'8','\u09ef':'9'};\r\n\r\n    \/* Helper to sanitize inputs *\/\r\n    function sanitize(str) {\r\n        if (!str) return \"\";\r\n        let s = str.toLowerCase().replace(\/s+\/g, '').replace(\/x\/g, '*').replace(\/\u00d7\/g, '*');\r\n        s = s.replace(\/[\u09e6-\u09ef]\/g, function(d) { return bnToEn[d]; });\r\n        return s;\r\n    }\r\n\r\n    \/* Quiz Questions *\/\r\n    const questions = [\r\n        {\r\n            text: \"\u09e7. \u09af\u09a6\u09bf \u09ac\u09b8\u09cd\u09a4\u09c1\u09b0 \u09ad\u09b0 2 kg \u09b9\u09af\u09bc, \u09a4\u09ac\u09c7 \u09b6\u0995\u09cd\u09a4\u09bf (E) \u09ac\u09c7\u09b0 \u0995\u09b0\u09be\u09b0 \u09b8\u09ae\u09c0\u0995\u09b0\u09a3\u099f\u09bf \u0995\u09c0\u09ad\u09be\u09ac\u09c7 \u09b8\u09be\u099c\u09be\u09ac\u09c7?\",\r\n            hint: \"(\u0987\u0999\u09cd\u0997\u09bf\u09a4: \u099c\u09be\u09a8\u09be \u09b0\u09be\u09b6\u09bf\u09b0 \u099c\u09be\u09af\u09bc\u0997\u09be\u09af\u09bc \u09b8\u0982\u0996\u09cd\u09af\u09be \u09ac\u09b8\u09be\u0993 \u098f\u09ac\u0982 \u0985\u099c\u09be\u09a8\u09be \u09b0\u09be\u09b6\u09bf \u09aa\u09cd\u09b0\u09a4\u09c0\u0995 \u09a6\u09bf\u09af\u09bc\u09c7 \u09b0\u09be\u0996\u09cb\u0964 c \u098f\u09b0 \u099c\u09be\u09af\u09bc\u0997\u09be\u09af\u09bc 'c' \u09b2\u09bf\u0996\u09a4\u09c7 \u09aa\u09be\u09b0\u09cb\u0964)\",\r\n            ans: {\r\n                e: ['e', '?'],\r\n                m: ['2'],\r\n                c: ['c', '3*10^8', '3e8', '300000000'],\r\n                p: ['2']\r\n            },\r\n            explanation: \"\u09af\u09c7\u09b9\u09c7\u09a4\u09c1 \u09b6\u0995\u09cd\u09a4\u09bf \u09ac\u09c7\u09b0 \u0995\u09b0\u09a4\u09c7 \u09b9\u09ac\u09c7, \u09a4\u09be\u0987 E \u098f\u09b0 \u09ac\u0995\u09cd\u09b8\u09c7 'E' \u09a5\u09be\u0995\u09ac\u09c7\u0964 \u09ad\u09b0 \u09e8 \u0995\u09c7\u099c\u09bf \u09a4\u09be\u0987 m \u098f\u09b0 \u09ac\u0995\u09cd\u09b8\u09c7 '2' \u09ac\u09b8\u09ac\u09c7\u0964 \u0986\u09b2\u09cb\u09b0 \u09ac\u09c7\u0997 'c' \u098f\u09ac\u0982 \u09b8\u09c2\u09a4\u09cd\u09b0\u09c7\u09b0 \u0998\u09be\u09a4 \u09b8\u09ac\u09b8\u09ae\u09af\u09bc '2' \u09b9\u09af\u09bc\u0964\"\r\n        },\r\n        {\r\n            text: \"\u09e8. 9 \u00d7 10\u00b9\u2076 \u099c\u09c1\u09b2 \u09b6\u0995\u09cd\u09a4\u09bf (E) \u09aa\u09c7\u09a4\u09c7 \u0995\u09a4 \u0995\u09c7\u099c\u09bf \u09ad\u09b0 (m) \u09b2\u09be\u0997\u09ac\u09c7? \u09b8\u09ae\u09c0\u0995\u09b0\u09a3\u099f\u09bf \u09b8\u09be\u099c\u09be\u0993\u0964\",\r\n            hint: \"(\u0987\u0999\u09cd\u0997\u09bf\u09a4: \u09b6\u0995\u09cd\u09a4\u09bf\u09b0 \u09ac\u0995\u09cd\u09b8\u09c7 \u09b6\u0995\u09cd\u09a4\u09bf\u09b0 \u09ae\u09be\u09a8 \u09ac\u09b8\u09be\u0993, \u09ad\u09b0\u09c7\u09b0 \u09ac\u0995\u09cd\u09b8\u09c7 m \u09b0\u09be\u0996\u09cb\u0964)\",\r\n            ans: {\r\n                e: ['9e16', '9*10^16', '90000000000000000'],\r\n                m: ['m', '?'],\r\n                c: ['c', '3e8', '300000000', '3*10^8'],\r\n                p: ['2']\r\n            },\r\n            explanation: \"\u098f\u0996\u09be\u09a8\u09c7 \u09b6\u0995\u09cd\u09a4\u09bf\u09b0 \u09ae\u09be\u09a8 \u099c\u09be\u09a8\u09be (9e16), \u09a4\u09be\u0987 E \u098f\u09b0 \u099c\u09be\u09af\u09bc\u0997\u09be\u09af\u09bc \u09ae\u09be\u09a8\u099f\u09bf \u09ac\u09b8\u09ac\u09c7\u0964 \u09ad\u09b0 \u0985\u099c\u09be\u09a8\u09be, \u09a4\u09be\u0987 m \u098f\u09b0 \u099c\u09be\u09af\u09bc\u0997\u09be\u09af\u09bc 'm' \u09ac\u09b8\u09ac\u09c7\u0964\"\r\n        },\r\n        {\r\n            text: \"\u09e9. \u0986\u0987\u09a8\u09b8\u09cd\u099f\u09be\u0987\u09a8\u09c7\u09b0 \u09ae\u09c2\u09b2 \u09b8\u09c2\u09a4\u09cd\u09b0\u099f\u09bf \u0995\u09cb\u09a8\u09cb \u09ae\u09be\u09a8 \u09a8\u09be \u09ac\u09b8\u09bf\u09af\u09bc\u09c7 \u09b6\u09c1\u09a7\u09c1\u09ae\u09be\u09a4\u09cd\u09b0 \u09aa\u09cd\u09b0\u09a4\u09c0\u0995 (E, m, c) \u09a6\u09bf\u09af\u09bc\u09c7 \u09b8\u09be\u099c\u09be\u0993\u0964\",\r\n            hint: \"(\u0987\u0999\u09cd\u0997\u09bf\u09a4: \u09b8\u09ac \u09ac\u0995\u09cd\u09b8\u09c7 \u09b8\u09a0\u09bf\u0995 \u0985\u0995\u09cd\u09b7\u09b0\u099f\u09bf \u09ac\u09b8\u09be\u0993\u0964)\",\r\n            ans: {\r\n                e: ['e'],\r\n                m: ['m'],\r\n                c: ['c'],\r\n                p: ['2']\r\n            },\r\n            explanation: \"\u09ae\u09c2\u09b2 \u09b8\u09c2\u09a4\u09cd\u09b0\u099f\u09bf \u09b9\u09b2\u09cb: E = m \u00d7 c\u00b2\"\r\n        },\r\n        {\r\n            text: \"\u09ea. \u09af\u09a6\u09bf \u09ac\u09b8\u09cd\u09a4\u09c1\u09b0 \u09ad\u09b0 0.5 kg (\u0985\u09b0\u09cd\u09a7\u09c7\u0995 \u0995\u09c7\u099c\u09bf) \u09b9\u09af\u09bc, \u09a4\u09ac\u09c7 \u09b8\u09ae\u09c0\u0995\u09b0\u09a3\u099f\u09bf \u0995\u09c0\u09b0\u09c2\u09aa \u09b9\u09ac\u09c7?\",\r\n            hint: \"(\u0987\u0999\u09cd\u0997\u09bf\u09a4: \u09ad\u09b0\u09c7\u09b0 \u09ac\u0995\u09cd\u09b8\u09c7 0.5 \u09ac\u09b8\u09be\u0993\u0964)\",\r\n            ans: {\r\n                e: ['e', '?'],\r\n                m: ['0.5', '.5', '1\/2'],\r\n                c: ['c', '3*10^8', '3e8', '300000000'],\r\n                p: ['2']\r\n            },\r\n            explanation: \"\u09ad\u09b0 0.5 \u0995\u09c7\u099c\u09bf, \u09a4\u09be\u0987 m \u098f\u09b0 \u09b8\u09cd\u09a5\u09be\u09a8\u09c7 0.5 \u09ac\u09b8\u09be\u09a4\u09c7 \u09b9\u09ac\u09c7\u0964 \u09ac\u09be\u0995\u09bf \u09b8\u09ac\u0995\u09bf\u099b\u09c1 \u09b8\u09c2\u09a4\u09cd\u09b0\u09c7\u09b0 \u09a8\u09bf\u09af\u09bc\u09ae\u09c7 \u0985\u09aa\u09b0\u09bf\u09ac\u09b0\u09cd\u09a4\u09bf\u09a4 \u09a5\u09be\u0995\u09ac\u09c7\u0964\"\r\n        }\r\n    ];\r\n\r\n    let currentQuestionIndex = 0;\r\n    let score = 0;\r\n\r\n    \/* DOM Elements *\/\r\n    const tabLearn = document.getElementById('tab-learn');\r\n    const tabTest = document.getElementById('tab-test');\r\n    const secLearn = document.getElementById('emc2-learn-section');\r\n    const secTest = document.getElementById('emc2-test-section');\r\n    \r\n    const inputE = document.getElementById('ans-e');\r\n    const inputM = document.getElementById('ans-m');\r\n    const inputC = document.getElementById('ans-c');\r\n    const inputP = document.getElementById('ans-p');\r\n    const allEqInputs = [inputE, inputM, inputC, inputP];\r\n    \r\n    \/* Tab Logic *\/\r\n    tabLearn.addEventListener('click', function() {\r\n        tabLearn.classList.add('active'); \r\n        tabTest.classList.remove('active');\r\n        secLearn.style.display = 'block'; \r\n        secTest.style.display = 'none';\r\n    });\r\n\r\n    tabTest.addEventListener('click', function() {\r\n        tabTest.classList.add('active'); \r\n        tabLearn.classList.remove('active');\r\n        secTest.style.display = 'block'; \r\n        secLearn.style.display = 'none';\r\n        if(currentQuestionIndex === 0 && score === 0) {\r\n            loadQuestion();\r\n        }\r\n    });\r\n\r\n    \/* Learning Mode *\/\r\n    document.getElementById('btn-calculate').addEventListener('click', function() {\r\n        const massStr = sanitize(document.getElementById('learn-mass').value);\r\n        const mass = parseFloat(massStr);\r\n        if (isNaN(mass) || mass <= 0) {\r\n            alert(\"\u09b8\u09a0\u09bf\u0995 \u09ad\u09b0\u09c7\u09b0 \u09aa\u09b0\u09bf\u09ae\u09be\u09a3 \u09b2\u09c7\u0996\u09cb\u0964\"); \r\n            return;\r\n        }\r\n\r\n        const energy = mass * C_SQUARED;\r\n        document.getElementById('res-m').textContent = mass;\r\n        document.getElementById('res-m2').textContent = mass;\r\n        document.getElementById('res-e').textContent = energy.toExponential(2).replace('e+', ' \u00d7 10^');\r\n        document.getElementById('learn-result').style.display = 'block';\r\n    });\r\n\r\n    \/* Test Mode Logic *\/\r\n    function loadQuestion() {\r\n        if (currentQuestionIndex >= questions.length) {\r\n            finishQuiz();\r\n            return;\r\n        }\r\n        \r\n        const q = questions[currentQuestionIndex];\r\n        document.getElementById('test-question').textContent = q.text;\r\n        document.getElementById('test-hint').textContent = q.hint;\r\n        \r\n        \/* Reset equation builder *\/\r\n        allEqInputs.forEach(function(input) {\r\n            input.value = '';\r\n            input.disabled = false;\r\n            input.classList.remove('eq-correct', 'eq-wrong');\r\n        });\r\n        \r\n        document.getElementById('test-feedback').style.display = 'none';\r\n        document.getElementById('btn-submit-answer').style.display = 'block';\r\n        document.getElementById('btn-next-question').style.display = 'none';\r\n    }\r\n\r\n    document.getElementById('btn-submit-answer').addEventListener('click', function() {\r\n        const q = questions[currentQuestionIndex];\r\n        \r\n        const valE = sanitize(inputE.value);\r\n        const valM = sanitize(inputM.value);\r\n        const valC = sanitize(inputC.value);\r\n        const valP = sanitize(inputP.value);\r\n\r\n        const isECorrect = q.ans.e.indexOf(valE) !== -1;\r\n        const isMCorrect = q.ans.m.indexOf(valM) !== -1;\r\n        const isCCorrect = q.ans.c.indexOf(valC) !== -1;\r\n        const isPCorrect = q.ans.p.indexOf(valP) !== -1;\r\n\r\n        applyValidationUI(inputE, isECorrect);\r\n        applyValidationUI(inputM, isMCorrect);\r\n        applyValidationUI(inputC, isCCorrect);\r\n        applyValidationUI(inputP, isPCorrect);\r\n\r\n        allEqInputs.forEach(function(input) { input.disabled = true; });\r\n        document.getElementById('btn-submit-answer').style.display = 'none';\r\n\r\n        const isAllCorrect = isECorrect && isMCorrect && isCCorrect && isPCorrect;\r\n        const feedbackBox = document.getElementById('test-feedback');\r\n\r\n        if (isAllCorrect) {\r\n            score++;\r\n            document.getElementById('current-score').textContent = score;\r\n            feedbackBox.innerHTML = '<span style=\"color: #137333; font-size: 18px; font-weight: bold;\">\u2713 \u09b8\u09a0\u09bf\u0995! \u09a4\u09c1\u09ae\u09bf \u0996\u09c1\u09ac \u09b8\u09c1\u09a8\u09cd\u09a6\u09b0 \u09b8\u09ae\u09c0\u0995\u09b0\u09a3 \u09b8\u09be\u099c\u09bf\u09af\u09bc\u09c7\u099b\u09cb\u0964' +\r\n                                    '<div style=\"margin-top: 10px; border-top: 1px solid #ccc; padding-top: 10px;\">' +\r\n                                    '<strong>\u09ac\u09cd\u09af\u09be\u0996\u09cd\u09af\u09be: ' + q.explanation +\r\n                                    '<\/script>","protected":false},"excerpt":{"rendered":"<p>\u09aa\u09cd\u09b0\u09bf\u09af\u09bc \u099b\u09be\u09a4\u09cd\u09b0\u099b\u09be\u09a4\u09cd\u09b0\u09c0\u09b0\u09be, \u09ad\u09cc\u09a4\u09ac\u09bf\u099c\u09cd\u099e\u09be\u09a8\u09c7\u09b0 \u09a4\u09c3\u09a4\u09c0\u09af\u09bc \u0985\u09a7\u09cd\u09af\u09be\u09af\u09bc \u2018\u09b0\u09be\u09b8\u09be\u09af\u09bc\u09a8\u09bf\u0995 \u0997\u09a3\u09a8\u09be\u2019-\u09a4\u09c7 \u0986\u09ae\u09b0\u09be \u09ac\u09bf\u099c\u09cd\u099e\u09be\u09a8\u09c0 \u0985\u09cd\u09af\u09be\u09b2\u09ac\u09be\u09b0\u09cd\u099f \u0986\u0987\u09a8\u09b8\u09cd\u099f\u09be\u0987\u09a8\u09c7\u09b0 \u098f\u0995\u099f\u09bf \u09af\u09c1\u0997\u09be\u09a8\u09cd\u09a4\u0995\u09be\u09b0\u09c0 \u0986\u09ac\u09bf\u09b7\u09cd\u0995\u09be\u09b0 \u09b8\u09ae\u09cd\u09aa\u09b0\u09cd\u0995\u09c7 \u099c\u09c7\u09a8\u09c7\u099b\u09bf\u2014 \u09ad\u09b0 \u0993 \u09b6\u0995\u09cd\u09a4\u09bf\u09b0 \u09a4\u09c1\u09b2\u09cd\u09af\u09a4\u09be \u09b8\u09ae\u09c0\u0995\u09b0\u09a3, E = mc2\u0964 \u09ac\u0987\u09af\u09bc\u09c7\u09b0 \u09aa\u09be\u09a4\u09be\u09af\u09bc \u09b8\u09ae\u09c0\u0995\u09b0\u09a3\u099f\u09bf \u09a6\u09c7\u0996\u09a4\u09c7 \u0996\u09c1\u09ac \u09b8\u09b9\u099c \u09ae\u09a8\u09c7 \u09b9\u09b2\u09c7\u0993, \u098f\u099f\u09bf \u0995\u09c0\u09ad\u09be\u09ac\u09c7 \u0995\u09be\u099c \u0995\u09b0\u09c7 \u098f\u09ac\u0982 \u0997\u09be\u09a3\u09bf\u09a4\u09bf\u0995 \u09b8\u09ae\u09b8\u09cd\u09af\u09be\u09af\u09bc \u098f\u0995\u09c7 \u0995\u09c0\u09ad\u09be\u09ac\u09c7 \u09b8\u09be\u099c\u09be\u09a4\u09c7 \u09b9\u09af\u09bc, \u09a4\u09be \u09a8\u09bf\u09af\u09bc\u09c7 \u0985\u09a8\u09c7\u0995\u09c7\u09b0\u0987 \u09ae\u09a8\u09c7 \u09ad\u09af\u09bc \u09a5\u09be\u0995\u09c7\u0964 \u09a4\u09cb\u09ae\u09be\u09a6\u09c7\u09b0 \u098f\u0987 \u09ad\u09af\u09bc \u09a6\u09c2\u09b0 \u0995\u09b0\u09a4\u09c7 \u098f\u09ac\u0982 &#8230; <a title=\"\u0986\u0987\u09a8\u09b8\u09cd\u099f\u09be\u0987\u09a8\u09c7\u09b0 \u09ad\u09b0 \u0993 \u09b6\u0995\u09cd\u09a4\u09bf\u09b0 \u09a4\u09c1\u09b2\u09cd\u09af\u09a4\u09be \u09b8\u09ae\u09c0\u0995\u09b0\u09a3 (E=mc\u00b2)\" class=\"read-more\" href=\"https:\/\/qsh.in\/boards\/wbbse\/class-x\/physical-science\/e-mc2-interactive-lab-quiz\/\" aria-label=\"Read more about \u0986\u0987\u09a8\u09b8\u09cd\u099f\u09be\u0987\u09a8\u09c7\u09b0 \u09ad\u09b0 \u0993 \u09b6\u0995\u09cd\u09a4\u09bf\u09b0 \u09a4\u09c1\u09b2\u09cd\u09af\u09a4\u09be \u09b8\u09ae\u09c0\u0995\u09b0\u09a3 (E=mc\u00b2)\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10],"tags":[],"class_list":["post-865","post","type-post","status-publish","format-standard","hentry","category-class-x-physical-science"],"_links":{"self":[{"href":"https:\/\/qsh.in\/boards\/wbbse\/wp-json\/wp\/v2\/posts\/865","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/qsh.in\/boards\/wbbse\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/qsh.in\/boards\/wbbse\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/qsh.in\/boards\/wbbse\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/qsh.in\/boards\/wbbse\/wp-json\/wp\/v2\/comments?post=865"}],"version-history":[{"count":3,"href":"https:\/\/qsh.in\/boards\/wbbse\/wp-json\/wp\/v2\/posts\/865\/revisions"}],"predecessor-version":[{"id":868,"href":"https:\/\/qsh.in\/boards\/wbbse\/wp-json\/wp\/v2\/posts\/865\/revisions\/868"}],"wp:attachment":[{"href":"https:\/\/qsh.in\/boards\/wbbse\/wp-json\/wp\/v2\/media?parent=865"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/qsh.in\/boards\/wbbse\/wp-json\/wp\/v2\/categories?post=865"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/qsh.in\/boards\/wbbse\/wp-json\/wp\/v2\/tags?post=865"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}