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JEE Main Physics question

PhysicsGravitationJEE Main

Assuming earth to be a sphere of uniform density, what is the value of gravitational acceleration in a mine 100 km below the earth's surface (Given km)? [AFMC 2000, Pb. PMT 2000, RPMT 2005]

Answer: (A)

Solution

$=g(1-Missing argument for \dfrac\dfrac dR)=9.8(1-)=9.8×0.9844

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Question ID VK-154607