Question

the lengthL of a pendulum is increase by 2% .Find the percentage increase in the period T

Answer 1

Explanation:

T = 2π√(L/g)

From above

ΔT/T × 100 = 0.5 × (ΔL/L × 100)

= 0.5 × 2%

= 1%

∴ If length of pendulum is increased by 2% then time period will increase by 1%

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