Question

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..........solve it ✔

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Answer 1

Explaination:

Time period of Oscillation of Pendulam

T=2π√L/g

,Where L is length of pendulam and g is acceleration due to gravity.

Hence we have

g=4π²L/T².......(1)

Hence, Δg/g*100=ΔL/L*100+2 ΔT/T*100=2%+2(1%)=4%

Answer 2

$\large \bold{ \red{4\%}}$