NEET Physics Satellite Motion MCQ Question
Initially a satellite of 100 kg is in a circular orbit of radius 1.5Rₑ. This satellite can be moved to a circular orbit of radius 3Rₑ by supplying 9 × 10⁶ J of energy. The value of Rₑ is _______. (Take Radius of Earth Rₑ = 6 × 10⁶ m and g = 10 m/s²)
150
1000
500
100
Correct Answer
Detailed Explanation
The energy required to move the satellite to a higher orbit is given by the difference in gravitational potential energy. Using the formula for potential energy in circular orbits, the calculation shows that Rₑ = 500 m.
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