First slide

Periodic Motion

Question

In a spring block system if length of the spring is increased by 4 %, then time period

Easy

A

increase by 2%
B

increase by 0.5%
C

decrease by 2%
D

decrease by 0.5%

Solution

$\frac{ΔT}{T} = \frac{- 1}{2} \frac{Δk}{k}; k \propto \frac{1}{l}$

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