MHT CET 2026 Physics question
A geostationary satellite is orbiting the earth at a height of 4R above the surface of the earth, where R is the radius of the earth. Another satellite is orbiting the earth at a height 1.5R from the surface of the earth with periodic time 'T' in hour. The value of 'T' in hour is
Answer: (B)
Solution
A geostationary satellite has period 24 h. Its orbital radius from the centre of the earth is . The second satellite has . By Kepler's third law , so $ = ( = ( =
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