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Two satellites A and B go round a planet...

Two satellites A and B go round a planet in circular orbit of radii 4 R and R respectively. If the speed of satellite A is 4 v, then the speed fo satellite B will be

A

12 v

B

8 v

C

4 v

D

v

Text Solution

Verified by Experts

The correct Answer is:
b
`V_(1) prop (1)/(sqrt(r_(1)))and V_(2)prop (1)/(sqrt(r_(2)))`
`(v_(2))/(v_(1))=sqrt((r_(2))/(r_(1)))`
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