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Question

The radius of a sphere is measured to be (4.0+2.0) cm the maximum percentage error in the measurement of the volume of the sphere is

A
10 %
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B
15 %
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C
20%
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D
25 %
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Solution

The correct option is B 15 %
Given,
r=(4±0.2)cm
Δrr=0.204=0.05
Volume, V=43πr3
ΔVV×100=3Δrr×100=3×0.05×100=15%
The correct option is B.

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