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Physics - Gravitation Question with Solution | TestHub

PhysicsGravitationField & ForceEasy2 minPYQ_2023

PhysicsEasysingle choice

If $R$ is the radius of the earth and $g$ is the acceleration due to gravity on the earth surface. Then the mean density of the earth will be

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Answer:

Solution:

Acceleration due to gravity on the earth surface $g = \frac{GM}{R ^{2}}$ $\frac{g = G \frac{4}{3} π R ^{3} ρ}{R ^{2}} g = G \frac{4}{3} π Rρ \Rightarrow ρ = \frac{3 g}{4 G π R}$

Stream:NEETSubject:PhysicsTopic:GravitationSubtopic:Field & Force

⏱ 2mℹ️ Source: PYQ_2023

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