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Physics - Gravitation Question with Solution | TestHub

PhysicsGravitationField & ForceEasy2 minPYQ_2020

PhysicsEasysingle choice

The value of gravitational acceleration $g$ at a height $h$ above the earth's surface is $\frac{g}{4}$ then (R = radius of earth)

Options:

Answer:

Solution:

$g^{'} = g {(\frac{R}{R + h})}^{2}$

When $g^{'} = \frac{g}{4}$ then.

$\frac{g}{4} = g \times {(\frac{R}{R + h})}^{2} \Rightarrow \frac{1}{2} = \frac{R}{R + h}$

$∴ 2 R = R + h \Rightarrow R = h$

Subject:PhysicsTopic:GravitationSubtopic:Field & Force

⏱ 2mℹ️ Source: PYQ_2020

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