A frictionless tunnel is dug along a chord of the earth at a perpendicular distance 2 R from the centre of earth (where R is radius of earth). An object is released from one end of the tunnel. The c

Question

A frictionless tunnel is dug along a chord of the earth at a perpendicular distance $\frac{R}{2}$ from the centre of earth (where R is radius of earth). An object is released from one end of the tunnel. The correct graph, showing the variation of acceleration of particle with its distance r from centre of earth is :

Options:

Answer:

D

Solution:

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Correct answer: D

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