A tunnel is dug through the centre of the Earth. Show that a body of mass 'm' when dropped from rest from one end of the tunnel will execute simple harmonic motion.

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Payal Gupta | Contributor-Level 10

7 months ago

This is a long answer type question as classified in NCERT Exemplar

The gravitational force on the particle at a distance r from the centre of the earth arises entirely from that portion of matter of the earth in shells internal to the positiin of the particles . the external shells exert no force on

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If the time period of a two meter long simple pendulum is 2s, the acceleration due to gravity at the place where pendulum is executing S.H.M. is:

Vishal Baghel

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Velocity of block in equilibrium, in first case,

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f? = 300 Hz
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Kindly consider the following figure

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Physics NCERT Exemplar Solutions Class 11th Chapter Fourteen 2025

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