Gravitation Question 21
Question: If the earth suddenly shrinks (without changing mass) to half of its present radius, the acceleration due to gravity will be [MNR 1998]
Options:
A) g/2
B) 4g
C) g/4
D) 2g
Show Answer
Answer:
Correct Answer: B
Solution:
$ [g=\frac{GM}{R^{2}}.] $
If radius shrinks to half of its present value then g will becomes four times.
