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MHT CET 2023 Physics question

PhysicsOscillationsMHT CET 2023

The upper end of the spring is fixed and a mass 'm' is attached to its lower end. When mass is slightly pulled down and released, it oscillates with time period 3 second. If mass 'm' is increased by 1kg, the time period becomes 5 second. The value of 'm' is (mass of spring is negligible)

Answer: (D)

Solution

For a spring-mass system , so . Hence . Substituting: , so \dfrac{9}{16}$\

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Question ID VK-096331