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Q.

If the length of a cylinder is measured to be 6.42 cm with an error of 0.02 cm. The percentage error in the measured length is nearly

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a

0.2%

b

0.1%

c

0.3%

d

0.4%

answer is B.

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Detailed Solution

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Δll×100=0.026.42×100=2642×100=0.3%

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