Navigate

The depth at which the effective value of acceleration due to gravity is g/4

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

MP2003
admin:

Related Questions

  1. What determines the nature of the path followed by the particle?
  2. Two coherent monochromatic beams of intensities I and 4I respectively, are superposed.
  3. In a transistor the collector current is always less than the emitter current
  4. A spring gun of spring constant 90 N/cm is compressed 12 cm by a ball of mass
  5. An α-particle of energy 5 MeV is scattered through 180⁰ by a fixed uranium nucleus.