Suppose a tunnel is dug along a diameter of the earth. A particle is dropped from a point, a distance h directly above the tunnel, the motion of the particle is
A
Simple harmonic
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B
Parabolic
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C
Oscillatory
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D
Periodic
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Solution
The correct options are C Oscillatory D Periodic When a particle is dropped from a height h above the centre of tunnel. (i) It will oscillate, through the earth to a height h on both sides (ii) The motion of particle is periodic (iii) The motion of particle will not be SHM.