MHT CET Physics question

The escape velocity of a body from the surface of the earth is equal to

(A)3 times critical velocity of body orbiting close to surface of the earth
(B) times critical velocity of a body orbiting very close to surface of the earthCorrect
(C)Critical velocity of a body orbiting very close to surface of the earth
(D) times critical velocity of a body orbiting very close to surface of the earth

Answer: (B)

Solution

and , so ; the other multiples (3, 1, 1/2) are incorrect. Hence the correct option is (b).

Question ID VK-059927