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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
- If F⃗ is the force acting on a particle having position vector r⃗ and ? ⃗ be the torque
- What is the energy of photon whose wavelength is 6840 Å?
- A black body at 227⁰C radiates heat at the rate of 7cals/cm²s. At a temperature
- When sound is produced in an aeroplane with a velocity of 200 m/s horizontally,
- A block of 2 kg is kept on the floor. The coefficient of static friction is 0.4
Topics: Gravitation (63)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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