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NTA Abhyas JEE Main2020PhysicsGravitationPractice

An artificial satellite is made to move in circular orbits of different radii around the earth. The variations of its K.E., P.E. and total energy ( E ) in different orbits is shown in the figure by different curves. Then for the satellites

Options

  1. AA represents the K.E., B & C the P.E. and C the total energy
  2. BA represents the P.E., B the K.E. and C the total energy
  3. CA represents the P.E., B the total energy and C the K.E.
  4. DA represents the total energy, B the K.E. and C the P.E.

Correct answer

C. A represents the P.E., B the total energy and C the K.E.

Step-by-step solution

The K.E. is always positive. ∴ The curve C represents the K.E. Both P.E. and total energy are positive but E < P . E . As P.E. = 2 (Total energy) ∴ B represents the total energy and A represents the P.E.

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