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Nitin Meel posted an Question
August 07, 2020 • 02:16 am 30 points
  • IIT JAM
  • Physics (PH)

Explin its answer and answer is `b' option

2 Answer(s) Answer Now
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  • comment-profile-img>
    Chandra prakash best-answer

    dear it's nothing but spherical polor coordinate s stysm. so plzz go through any you tube video...and try to understand everything about coordinate system.... Best regards..

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    Dhairya sharma

    ans is b ??

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    ans given is B, but how it is I did not understood

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    dear it's changing d/dr = d/dt. dt/dr type

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