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The earth is assumed to be a sphere of radius R. A platform is arranged at a height R from the surface of the earth. The escape velocity of a body from this platform is fv, where v is its escape velocity from the surface of the Earth. The value of f is
Options
(a) (1/2)
(b) √2
(c) 1/√2
(d) (1/3)
Correct Answer:
1/√2
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
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Topics: Gravitation
(63)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The displacement of a particle varies according to the relation x=4 (cos π t + sin π t)
- A ball is dropped from a height of 20 cm. Ball rebounds to a height of 10cm
- When a charged oil drop moves upwards in an electric field,
- The threshold wavelength for photoelectric emission from a material is 4800 Å.
- The half life of a radioactive isotope ‘X’ is 20 years. It decays to another element Y
Topics: Gravitation (63)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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