Written by IITians. Foreword by HC Verma. Appreciated by Students. More at www.concepts-of-physics.com/
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Audio Credit: Easy Lemon 60 Second by Kevin MacLeod is licensed under a Creative Commons Attribution license (https://creativecommons.org/licenses/by/4.0/)
Source: http://incompetech.com/music/royalty-free/index.html?isrc=USUAN1200077
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