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    "content": "<h1>\u0915\u093f\u0938\u0940 \u0938\u0935\u093e\u0932 \u092a\u0930 \u091a\u0930\u094d\u091a\u093e \u0915\u0930 \u0930\u0939\u0947 \u0926\u094b\u0938\u094d\u0924\u094b\u0902 \u0915\u0940 \u092e\u0926\u0926 \u0915\u0930\u094b</h1>\n\n<p align=\"justify\"><span style=\"font-size:20px;\"><font face=\"Nirmala UI\">\u0915\u0902\u091a\u0928 \u090f\u0915 \u0924\u093e\u0930 \u0938\u0947 \u0916\u0947\u0932 \u0930\u0939\u0940 \u0925\u0940\u0964 \u0909\u0938\u0928\u0947 \u0924\u093e\u0930 \u0915\u094b \u0915\u0938\u0915\u0947 \u092a\u0915\u095c \u0915\u0930 \u090f\u0915 \u0909\u0902\u0917\u0932\u0940 \u0938\u0947 \u0916\u0940\u0902\u091a\u0915\u0930 \u091b\u094b\u095c \u0926\u093f\u092f\u093e \u0914\u0930 \u092b\u093f\u0930 \u0909\u0938\u0915\u0940 <font color=\"#000000\"><font face=\"Nirmala UI\">\u0927\u094d\u0935\u0928\u093f</font></font> \u0915\u094b \u0938\u0941\u0928\u093e\u0964 \u0909\u0938\u0915\u094b \u0932\u094b \u092a\u093f\u091a \u092f\u093e\u0928\u0940 \u0927\u0940\u092e\u0940 <font color=\"#000000\"><font face=\"Nirmala UI\">\u0927\u094d\u0935\u0928\u093f</font></font> \u0938\u0941\u0928\u093e\u0908 \u0926\u0940\u0964 \u092b\u093f\u0930 \u0909\u0938\u0928\u0947 \u0924\u093e\u0930 \u0915\u0940 \u0932\u092e\u094d\u092c\u093e\u0908 \u0915\u092e \u0915\u0930\u0915\u0947 \u0909\u0938\u0947 \u092b\u093f\u0930 \u0938\u0947 \u092c\u091c\u093e\u092f\u093e\u0964 \u0907\u0938 \u092c\u093e\u0930 \u0909\u0938\u0947 \u0939\u093e\u0907 \u092a\u093f\u091a \u092f\u093e\u0928\u0940 \u090a\u0902\u091a\u0940 <font color=\"#000000\"><font face=\"Nirmala UI\">\u0927\u094d\u0935\u0928\u093f</font></font> \u0938\u0941\u0928\u093e\u0908 \u0926\u0940\u0964 </font></span><br />\n&nbsp;</p>\n\n<p align=\"justify\"><span style=\"font-size:20px;\"><font face=\"Nirmala UI\">\u0909\u0938\u0915\u0947 \u090f\u0915 \u0926\u094b\u0938\u094d\u0924 \u0938\u094b\u0928\u0942 \u0915\u094b \u0905\u092a\u0928\u0940 \u091c\u0947\u092c \u092e\u0947\u0902 \u090f\u0915 \u0930\u092c\u0930\u092c\u0948\u0902\u0921 \u092e\u093f\u0932\u093e\u0964 \u0909\u0938\u0928\u0947 \u0915\u0902\u091a\u0928 \u0915\u0940 \u0939\u0940 \u0924\u0930\u0939 \u0930\u092c\u0930\u092c\u0948\u0902\u0921 \u0915\u094b \u0916\u0940\u0902\u091a\u0915\u0930 \u091b\u0947\u095c\u093e\u0964 \u0932\u0947\u0915\u093f\u0928 \u0907\u0938 \u092c\u093e\u0930 \u0928\u0924\u0940\u091c\u093e \u0915\u0902\u091a\u0928 \u0915\u0947 \u092c\u093f\u0932\u094d\u0915\u0941\u0932 \u0909\u0932\u094d\u091f\u093e \u0925\u093e\u0964\u091c\u092c \u0909\u0938\u0928\u0947 \u0930\u092c\u0930\u092c\u0948\u0902\u0921 \u0915\u0940 \u0932\u092e\u094d\u092c\u093e\u0908 \u0915\u094b \u092c\u095d\u093e\u0915\u0930 \u0909\u0938\u0947 \u091b\u0947\u095c\u093e \u0924\u094b <font color=\"#000000\"><font face=\"Nirmala UI\">\u0927\u094d\u0935\u0928\u093f</font></font> \u0939\u093e\u0907 \u092a\u093f\u091a \u0925\u0940</font>!<br />\n<br />\n<font face=\"Nirmala UI\">\u0909\u0938\u0947 \u092c\u0939\u0941\u0924 \u092e\u091c\u093e \u0906\u092f\u093e \u0914\u0930 \u092f\u0939 \u092c\u093e\u0924 \u0909\u0938\u0928\u0947 \u0915\u094d\u0932\u093e\u0938 \u092e\u0947\u0902 \u0905\u092a\u0928\u0947 \u0926\u094b\u0938\u094d\u0924\u094b\u0902 \u0938\u0947 \u092c\u0924\u093e\u0908\u0964</font></span></p>\n\n<blockquote>\n<p align=\"justify\"><span style=\"font-size:20px;\"><font face=\"Nirmala UI\">\u0909\u0928\u0915\u0940 \u092c\u093e\u0924\u091a\u0940\u0924 \u0915\u094b \u0938\u0941\u0928\u0915\u0930 \u0907\u0938 \u092a\u0939\u0947\u0932\u0940 \u0915\u094b \u0938\u0941\u0932\u091d\u093e\u0928\u0947 \u092e\u0947\u0902 \u0909\u0928\u0915\u0940 \u092e\u0926\u0926 \u0915\u0930\u094b\u0964&nbsp;</font></span> <script type=\"text/javascript\" src=\"/static/ndf/bower_components/videojs/dist/video.min.js\"></script> <script type=\"text/javascript\" src=\"/static/ndf/bower_components/videojs/dist/video.js\"></script></p>\n</blockquote>\n\n<div>\n<div class=\"video-player-area\" id=\"video-player-599fc41d69602a01574c4a73\">\n<div class=\"vidbak\">\n<video class=\"video-js vjs-skin-colors-clix vjs-big-play-button center\" controls=\"controls\" data-setup=\"{ &quot;playbackRates&quot;: [0.5, 1, 1.5, 2] }\" height=\"360\" id=\"599fc41d69602a01574c4a73\" width=\"480\"><source codecs=\"avc1.42E01E, mp4a.40.2\" crossorigin=\"anonymous\" preload=\"metadata\" src=\"/media/3/9/6/fa93e65790f949064c391d362ada4e82d787cf1bc79479c84c79461b63a52.mp4\" type=\"video/mp4\" /> <script>\n\t\t\tfunction myFunction() { \n\t\t\t    var vid = document.getElementById(id);\n\t\t\t    document.getElementById(\"mySpan\").innerHTML = \"Seeking: \" + vid.seeking;\n\t\t\t} \n\t\t\tfunction togglerTranscript(a){\n                $(a).next(\".transcript-data\").toggleClass(\"hide\");\n            };\n         \n\t\t\t</script> <!-- adding captions in different language--></video>\n</div>\n</div>\n</div>\n\n<blockquote>\n<p align=\"justify\"><span style=\"font-size:20px;\"><font face=\"Nirmala UI\">\u0915\u0902\u091a\u0928 \u0914\u0930 \u0938\u094b\u0928\u0942 \u091c\u094b \u092a\u094d\u0930\u092f\u094b\u0917 \u0915\u0930\u0924\u0947 \u0939\u0948\u0902 \u0909\u0928\u0915\u094b \u0924\u0941\u092e \u092d\u0940 \u0915\u0930\u094b\u0964 \u0924\u0941\u092e \u091a\u093e\u0939\u094b \u0924\u094b \u0905\u0932\u0917 \u092a\u094d\u0930\u092f\u094b\u0917 \u092d\u0940 \u0915\u0930 \u0938\u0915\u0924\u0947 \u0939\u094b\u0964</font></span></p>\n</blockquote>\n",
    "content_org": "<h1>Friends discussing a question; help them</h1>\r\n\r\n<p><span style=\"font-size:20px;\">Kanchan was playing with a string (1 foot long). She want&nbsp;to see the wave in it. So she taut one end of the string with a hook and hold the other end in her hand. Then she gave a jerk to the string (You have also done this kind of activity with your friend in previous lesson).<br />\r\n<br />\r\nNow she taut the other end too with a hook. She want to hear the sound in the string. The string was stretched tightly between the two hooks.<br />\r\n<br />\r\nShe plucked the string with a finger. She heard a low sound. She repeated this with shorter length of the string.<br />\r\n<br />\r\nShe found that,&nbsp; the sound was becoming shriller with the shorter length of the string.<br />\r\n<br />\r\nShe was so excited, she told this to everyone in the class.<br />\r\n<br />\r\nSonu one of her friends wanted to try this. He found a rubber band in his pocket. He tried the same with rubber band. But he found opposite result. He found that as he elongated (increased the length) the rubber band, the sound was becoming shriller.&nbsp;<br />\r\n<br />\r\nOther students of the class also tried this and got confused.<br />\r\n&nbsp;<br />\r\nListen to their conversation and help them to solve this puzzle.</span></p>",
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