State the correct expression for the acceleration due to gravity at a depth below the…

PHYSICS · Single correct · CBSE · Physics · Gravitation · Gravitation

Problem

State the correct expression for the acceleration due to gravity gdg_d at a depth dd below the Earth’s surface (Earth taken as a sphere of radius RR). (a) gd=g(1−dR)g_d = g\left(1-\dfrac{d}{R}\right) (b) gd=g(1−2dR)g_d = g\left(1-\dfrac{2d}{R}\right) (c) gd=g(R−dR)2g_d = g\left(\dfrac{R-d}{R}\right)^2 (d) gd=g(1−(dR)2)g_d = g\left(1-\left(\dfrac{d}{R}\right)^2\right)

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