Question:

The ratio of escape velocity at earth (ve) to the escape velocity at a planet (vp) whose radius and mean density are twice as that of earth is

Options :

  • (a) 1:2
  • (b) 1:2√2
  • (c) 1:4
  • (d) 1:√2

Answer :

(b) 1:2√2

Answer Steps :

step 1

step 2

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