Question

Equipotential surfaces are 

A

Surfaces that are perpendicular to gravitational fields

B

Surfaces that have same mass on top of it

C

Surface that have same radius of curvature

D

Surfaces that have same gravitational field on it

Medium

Solution

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Correct option is
A

Surfaces that are perpendicular to gravitational fields

  • Equipotential surfaces are surfaces which have the same value of potential throughout their surface.
  • For a gravitatiomal field of ,the potential is
  • So,at a particular 'r',the potential remains constant at a value of
  • So equipotential surfaces are circles for the filed of
  • Hence,the field is perpendicular to equipotential surface.

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