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Question

A cuboid has volume V=1×2l×3l where 1 is the length of one side. If the relative percentage error in the measurement of l is 1%, then the relative percentage error in measurement of V is

A
18%
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B
6%
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C
3%
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D
1%
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Solution

The correct option is C 3%
V=6l3
ΔVV×100=3×Δll×100
ΔVV×100=3×1=3%
%errorinV=3%
Hence,
option (C) is correct answer.

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