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The depth at which the effective value of acceleration due to gravity is g/4 is (R=Radius of earth)
Options
(a) R
(b) 3R/4
(c) R/2
(d) R/4
Correct Answer:
3R/4
Explanation:
The effect of depth of acceleration due to gravity is g’=g(1-d/R)
Given, g’=g/4
g/4=g(1-d/R)
(g/4)/g=(1-d/R)
1/4=1-d/R ⇒d/R=1-1/4 ⇒3/4
d=3R/4
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Topics: Gravitation
(63)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A conducting sphere of radius R is given a charge Q. The electric potential
- Light of wavelength λᴀ and λᴃ falls on two identical metal plates A and B respectively.
- A radioactive substance decays to 1/16th of its initial activity in 40 days.
- An alternating voltage given as, V=100√2 sin100t V is applied to a capacitor
- A lead bullet of 10 gm travelling at 300 m/s strikes against a block
Topics: Gravitation (63)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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