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Q.

To estimate ‘g’ (from g=4π2LT2 ), error in measurement of L is ±  2%  and error in measurement of T is ±  3% . The error in estimated ‘g’ will be

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a

±  8%

b

±  6%

c

±  3%

d

±  5%

answer is A.

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Detailed Solution

g = 4π2  lT2     g%=l%+2T%=2+2(3)=8%
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