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Shweta thakur Asked a Question
August 28, 2020 11:33 pmpts 30 pts
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  • Priyanshu kumar Best Answer
    https://youtu.be/hBl2B0eZO60 see this video how ques comes
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    Shweta thakur
    sir
  • Anonymous User thankyou
    Have you studied wave in physics
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  • Shweta thakur
    yes
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