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MHT CET Physics question

PhysicsMechanical Properties of SolidsMHT CET

When a long spring is stretched by 1 cm, the potential energy stored in the spring is 'U'. If it is stretched by 4 cm, the potential energy stored in it is [MHT-CET 2005]

Answer: (A)

Solution

, so stretching by 4 times gives ; 4U corresponds

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Question ID VK-068568