Q30. A particle, thrown with a speed v from the earth's surface, attains a maximum height...

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Q30. A particle, thrown with a speed v from the earth's surface, attains a maximum height h (measured from the surface of the earth). If v is half the escape velocity and R denotes the radius of earth, then h/R is (a) 2/3 (b) 1/3 (c) 1/4 (d) 1/2 R h Earth Q30. A particle, thrown with a speed v from the earth's surface, attains a maximum height h (measured from the surface of the earth). If v is half the escape velocity and R denotes the radius of earth, then h/R is (a) 2/3 (b) 1/3 (c) 1/4 (d) 1/2 R h Earth

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