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The radii of circular orbits of two sate...

The radii of circular orbits of two satellite `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

A

`(3v)/4`

B

`6v`

C

`12v`

D

`(3v)/2`

Text Solution

Verified by Experts

The correct Answer is:
B
`v=sqrt((GM)/r)implies v prop 1/(sqrt(r)) `
`(v_(A))/(v_(B))=(3v)/(v_(B))=1/2`
`v_(B)=6v`
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