Physics - Gravitation Question with Solution | TestHub

PhysicsGravitationField & ForceMedium2 minQB

PhysicsMediummultiple choice

Two spherical planets have the same mass but densities in the ratio 1: 8. For these planets, the :-

Answer:

B, D

Solution:

Same mass, densities in ratio $1 : 8$ → volumes $8 : 1$ → radii ratio $R_{1} : R_{2} = 2 : 1$ .

$g = \frac{GM}{R ^{2}}$ gives the ratio $1 : 4$ - (B) correct.

$v_{e} = \frac{2 GM}{R}$ gives the ratio $1 : 2$ - (D) correct.

Stream:JEESubject:PhysicsTopic:GravitationSubtopic:Field & Force

⏱ 2mℹ️ Source: QB

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