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Physics - Gravitation Question with Solution | TestHub

PhysicsGravitationField & ForceEasy2 minPYQ_2005

PhysicsEasysingle choice

Imagine a new planet having the same density as that of earth but it is 3 times bigger than the earth in size. If the acceleration due to gravity on the surface of earth is $g$ and that on the surface of the new planet is $g^{'}$ then:

Options:

Answer:

Solution:

$g = \frac{GM}{R ^{2}} g^{'} = \frac{G \frac{4}{3} π R ^{3} ρ}{R ^{2}} = \frac{4}{3} G π Rρ = \frac{4}{3} G π (3 R) ρ = 3 g$

Stream:NEETSubject:PhysicsTopic:GravitationSubtopic:Field & Force

⏱ 2mℹ️ Source: PYQ_2005

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