First slide
Introduction to oscillations
Question

Suppose a tunnel is dug along a diameter of the earth. A particle is dropped from a point a distance of the ‘ h‘ directly above the tunnel, the motion of the particle is

Easy
Solution

 

When a particle is dropped from a height h above the centre of tunnel along earth’s diameter
(i) It will oscillate through the earth to a height on both sides
(ii) The motion of particle is periodic but not in SHM

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