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1.0 मीटर लम्बाई के सरल लोलक के 10 दोलनों का समय विराम-घड़ी से 20 सेकण्ड मापा गया। विराम-घड़ी का अल्पतम- माप 0.1 सेकण्ड है। `g= pi^2 (L)/(T^2)` की गणना में, g की प्रतिशत त्रुटि होगी :
A. `1 %`
B. `10 %`
C. `11 %`
D. `20 %`

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Correct Answer - B
संकेत : `(Delta L)/(L)xx 100=0,2(Delta T)/(T)=2 xx (0.1)/(2)xx 100= 10 %`

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