Gravitation Question 26

Question: The diameters of two planets are in the ratio 4 : 1 and their mean densities in the ratio 1 : 2. The acceleration due to gravity on the planets will be in ratio[ISM Dhanbad 1994]

Options:

A) 1 : 2

B) 2 : 3

C) 2 : 1

D) 4 : 1

Show Answer

Answer:

Correct Answer: C

Solution:

[g=43GπRρ]

[,g1g2=ρ1R1ρ2R2]

[=12×41=21]



NCERT Chapter Video Solution

Dual Pane