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Physics-Orbital Motion

NEET Physics Orbital Motion MCQ Question

Type: MCQ-numerical-Hard-Class 11

A satellite orbits the Earth in a circular orbit with a radius equal to twice the Earth's radius. What is the orbital velocity of the satellite?

A

3.92 km/s

B

5.60 km/s

C

7.90 km/s

D

11.20 km/s

Correct Answer

Option A

Detailed Explanation

The orbital velocity is given by v = (GM/R)^0.5. For a satellite orbiting at twice the Earth's radius, R = 2RE, where RE is the Earth's radius. Using M = 5.97 x 10^24 kg and G = 6.67 x 10^-11 N(m/kg)^2, we find v = 3.92 km/s.

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