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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
- Electric field at a point of distance r from a uniformly charged wire of infinite
- Equal currents are passing through two very long and straight parallel wires
- The kinetic energy of α-particle emitted in the α-dacay of ₈₈Ra²²⁶ is
- The electric current in AC circuit is given by the relation i-3 sinωt+4 cos ωt.
- Two thin lenses when placed in contact, then the power of combination is +10 D.
Topics: Gravitation (63)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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