Question

The orbital velocity at a height h above the surface of earth is 90% of that near the
surface of the earth. If the escape velocity at the surface of the earth be v, then its
value at the height h will be
(a) 0.11 v (b) 0.81 v (c) 0.90 v (d) 0.99 v



pls explain...​

Answer 1

Answer:

C option is the correct answer.