Question

Three springs are connected to a mass m as shown in figure. What is T?
(a) 2π√(m/k)
(b) 2π√(m/3k)
(c) 2π√(3m/2k)
(d) 2π√(2m/3k)

Answer 1

☆☆ AS-SALAMU-ALYKUM ☆☆

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OPTION C IS CORRECT
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IN SERIES :-
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K=K+K=2K
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IN PARALLEL
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2K×K÷3K
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2K÷3
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TIME PERIOD OF MASS ATTACHED TO SPRING IS GIVEN BY :-
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T=2Pi square root m/k
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NOW T'=2pi square root m/k'
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T'= 2Pi square root m/2k÷3
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T'=2Pi square root 3m/2k

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