NEET Physics Escape Velocity MCQ Question
Which of the following statements about escape velocity is correct?
Escape velocity is independent of the mass of the object trying to escape.
The formula for escape velocity incorporates the height from which the object is thrown.
The escape velocity from the Earth's surface is approximately 9.8 m/s.
Escape velocity can be calculated using the relation V = √(2gR) where g is the acceleration due to gravity.
Correct Answer
Detailed Explanation
Escape velocity is indeed independent of the mass of the object; it only depends on the gravitational pull of the planet and its radius, as indicated in the context. Statements B and C are incorrect as the escape velocity formula from the Earth's surface is derived as V = √(2GM/R), leading to a value of approximately 11.2 km/s, not 9.8 m/s.
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