The time period of mass suspended from a spring is T . 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:NEET 2003

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Let K = force constant of spring and K ′ = force constant of each part then K 1 ​ = K ′ 4 ​ ⇒ K ′ = 4 K ∴ Time period = 2 π 4 K m ​ ​ = 2 1 ​ × 2 π 4 K m ​ ​ = 2 T ​ ​

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