Question

The percentage error in measurements of length and time period is 2% and 1% respectively the percentage error in measurement of 'g' is
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Answer 1

T=1/2Δl/l+1/2 Δg/g

2= 1/2*2+1/2Δg/g

(2-1)*2=Δg/g

Δg/g = 2%