AIPMT PRELIMS2010Physics-Gravitation
AIPMT PRELIMS 2010 Physics Satellite Motion MCQ Question
Type: MCQ-numerical-Medium-Class 11
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
A
3V/2
B
3V/4
C
6V
D
12V
Correct Answer
Option C
Detailed Explanation
The speed of a satellite in orbit is inversely proportional to the square root of the radius of the orbit. Therefore, V₂ = V₁√(r₁/r₂). Given V₁ = 3V and r₁/r₂ = 1/4, V₂ = 6V.
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