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Gravitation question

2023 · 25 Jan · Shift 1 · Q54
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  5. /2023 · 25 Jan · Shift 1 · Q54

Gravitation question

2023 · 25 Jan · Shift 1 · Q54

JEE MainPhysicsGravitationMCQ+4 / −1
Assume that the earth is a solid sphere of uniform density and a tunnel is dug along its diameter throughout the earth. It is found that when a particle is released in this tunnel, it executes a simple harmonic motion. The mass of the particle is 100 g. The time period of the motion of the particle will be (approximately) (Take g = 10 m s −2^{-2}−2 , radius of earth = 6400 km)
  1. A
    12 hours
  2. B
    1 hour 24 minutes
  3. C
    24 hours
  4. D
    1 hour 40 minutes
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