Two satellites A and B go round a planet P in circular orbits having radii 4R and R respectively. If the speed of the satellite A is 3V, the speed of the satellite B will be
A
12 V
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B
6 V
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C
4V3
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D
3V2
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Solution
The correct option is B 6 V VAVB=√rBrA⇒3VVB=√R4R⇒VB=6V