question_answer

The radii of circular orbits of two satellites A and B of the earth are 4R and R, respectively. If the speed of satellite A is 3v, then the speed of satellite B will be                        [AIPMT (S) 2010]

A) 3 v/4    

B) 6 v

C) 12 v

D) 3 v/2

Correct Answer: B

Solution :

Orbital velocity of satellite