Gravitation Question 3

Question: Two planets have the same average density but their radii are [R1] and [R2] . If acceleration due to gravity on these planets be [g1] and [g2] respectively, then [AIIMS 1985]

Options:

A) [g1g2=R1R2]

B) [g1g2=R2R1]

C) [g1g2=R12R22]

D) [g1g2=R13R23]

Show Answer

Answer:

Correct Answer: A

Solution:

[g=43πρGR] . If [ρ] = constant then [g1g2=R1R2]



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