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A planet has twice the radius but the mean density is as comparsed to earth.What

is the ratio of escape velocity from earth to that from the planet?

a)

3:1

b)

1:2

c)

1:1

d)

2:1



Question ID - 54307 | SaraNextGen Top Answer

A planet has twice the radius but the mean density is as comparsed to earth.What

is the ratio of escape velocity from earth to that from the planet?

a)

3:1

b)

1:2

c)

1:1

d)

2:1

1 Answer
127 votes
Answer Key / Explanation : (c) -

(c)

The maximum velocity with which a body must be projected in the atmosphere, so as to enable it to just overcome the gravitational pull, is known as escape velocity.

Escape velocity from earth’s surface is

similarly, for a planet

127 votes


127