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The length of a cylinder is measured with a meter rod having least count 0.1 cm. Its diameter is measured with Vernier callipers having lease count 0.01 cm. Given that length is 5.0 cm and radius is 2.0 cm. The percentage error in the calculated value of the volume will be

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a
1%
b
2%
c
3%
d
4%

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detailed solution

Correct option is C

Volume of cylinder V = πr2lPercentage error in volume△VV×100 = 2△rr×100+△ll×100= (2×0.012.0×100+0.15.0×100)= (1+2)% = 3%


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A physical quantity A is related to four observable a, b, c and d as A=a2b3cd . The percentage errors of measurement in a, b, c and d are 1 %, 3 %, 2 % and 2 % respectively. What is the percentage error in the quantity A ?


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