Gravitation Question 44

Question: Assuming earth to be a sphere of a uniform density, what is the value of gravitational acceleration in a mine 100 km below the earth’s surface (Given R = 6400 km) [AFMC 2000; Pb. PMT 2000]

Options:

A) [9.66m/s2]

B) [7.64m/s2]

C) [5.06m/s2]

D) [3.10m/s2]

Show Answer

Answer:

Correct Answer: A

Solution:

[g=g(1dR)=9.8(11006400)=9.66m/s2]



NCERT Chapter Video Solution

Dual Pane