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A satellite of mass  revolves around the earth of radius  at a height  from its surface. If is the acceleration due to gravity on the surface of the earth, the orbital speed the satellite is

a)

b)

c)

d)


Question ID - 54729 :-

A satellite of mass  revolves around the earth of radius  at a height  from its surface. If is the acceleration due to gravity on the surface of the earth, the orbital speed the satellite is

a)

b)

c)

d)

1 Answer
5876 Votes
3537

Answer Key : (d) -

(d)

The gravitational force exerted on satellite at a height  is

where

Since, gravitational force provides the necessary centripetal force, so,

where  is orbital speed of satellite.



Next Question :

If =4 then value of x equals

a)

216

b)

316

c)

450

d)

150


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