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NEETPhysicsGravitation

Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R . Assertion A : The escape velocities of planet A and B are same. But A and B are of unequal mass. Reason R : The product of their mass and radius must be same. M 1 R 1 = M 2 R 2 In the light of the above statements, choose the most appropriate answer from the options given below :

Options

  1. ABoth A and R are correct and R is the correct explanation of A
  2. BBoth A and R are correct but R is NOT the correct explanation of A
  3. CA is not correct but R is correct
  4. DA is correct but R is not correct

Correct answer

D. A is correct but R is not correct

Step-by-step solution

V e = 2 GM R M 1 R 1 = M 2 R 2 M 1 R 2 = M 2 R 1 Hence reason R is not correct.

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