Gravitation Question 64
Question:Two planets of radii in the ratio 2 : 3 are made from the material of density in the ratio 3 : 2. Then the ratio of acceleration due to gravity $ [g_{1}/g_{2}] $ at the surface of the two planets will be [J & K CET 2004]
Options:
A) 1
B) 2.25
C) 4/9
D) 0.12
Show Answer
Answer:
Correct Answer: A
Solution:
$ [\frac{g_{1}}{g_{2}}=\frac{{\rho_{1}}}{{\rho_{2}}}\times \frac{R_{1}}{R_{2}}=\frac{3}{2}\times \frac{2}{3}=1] $
