Gravitation Question 54
Question: The acceleration due to gravity is g at a point distant r from the centre of earth of radius R. If $ [r<R] $ , then [CPMT 2002]
Options:
A) $ [g\propto r] $
B) $ [g\propto r^{2}] $
C) $ [g\propto {{r}^{-1}}] $
D) $ [g\propto {{r}^{-2}}] $
Show Answer
Answer:
Correct Answer: A
Solution:
Inside the earth $ [g’=\frac{4}{3}\pi \rho Gr] $
$ [g’\propto r] $
