Ram Prasath posted an Question
August 06, 2021 • 20:50 pm 30 points
  • IIT JAM
  • Physics (PH)

Friends please somebody help me with this problem? and explain why they use this formula?

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  • Dr suman 1 Best Answer

    see the attachment.

    cropped3623553901142153197.jpg
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    j still have one doubt bro. how did they find value of da ? please can u explain the last 2 lines?

    eduncle-logo-app

    this is the surface element.

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