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JEE Mains 25-Jan-2023 Shift 1 Solved Paper

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Question : 5

Total: 90

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 100g. The time period of the motion of the particle will be (approximately)
(take g=10ms−2,radius of earth =6400‌km )

[25-Jan-2023 Shift 1]

24 hours
1 hour 24 minutes
1 hour 40 minutes
12 hours

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