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NEET 2003 Physics question

PhysicsOscillationsNEET 2003

The time period of a mass suspended from a spring is . If the spring is cut into four equal parts and the same mass is suspended from one of the parts, then the new time period will be -

Answer: (3)

Solution

For a spring, force constant is inversely proportional to its length ( = constant). Cutting it into four equal parts gives each part . $T =

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Question ID VK-089150