AIPMT PRELIMS2012Physics-Gravitation
AIPMT PRELIMS 2012 Physics Satellite Motion MCQ Question
Type: MCQ-conceptual-Medium-Class 11
A geostationary satellite is orbiting the earth at a height of 5R above the surface of the earth, R being the radius of the earth. The time period of another satellite in hours at a height of 2R from the surface of the earth is
A
6/√2
B
5
C
10
D
6√2
Correct Answer
Option D
Detailed Explanation
The time period T is proportional to the cube root of the radius of orbit r. For a satellite at height 2R, the radius is 3R. Using the proportionality, T = 6√2 hours.
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