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Snehasish ghosh Asked a Question
August 9, 2020 11:15 pmpts 30 pts
  • IIT JAM
  • Physics (PH)

Please explain question no. 19 and solve it too in details.

  • 2 Answer(s)
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  • Mahak Best Answer
    ans is 3 see attached here phi is replaced by U
    • cropped443291499252952810.jpg
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  • Vaishali sharma thankyou
    dear option would be ||| . because here derivative or phi would come with direction and only option left with direction is 3rd
    Likes(1) Reply(1)
    Vaishali sharma
    so we can simply check by using options.
  • Vaishali sharma
    see this as well
    • cropped8400906831020489364.jpg
    Likes(1) Reply(4)
    Vaishali sharma
    it will help u
  • Chandra dhawan
    see attachment
    • cropped7875354299175517893.jpg
    Likes(1) Reply(2)
    Chandra dhawan
    it's very helpful
  • Ruby negi
    del phi means gradiant of phi
    Likes(1) Reply(0)
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