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MHT CET Physics question

PhysicsOscillationsMHT CET

Two massless springs of spring constants and are connected one after the other forming a single chain, suspended vertically and certain mass is attached to the free end. If '' and '' are their respective extensions and 'f' is their stretching force, the total extension produced is [MHT-CET 2019]

Answer: (D)

Solution

In series each spring carries the same force f, so , and the total extension is

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Question ID VK-068537