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Q.

One side of a cubical block is measured with the help of a Vernier calipers of Vernier constant 0.01 cm. This side comes out to be 1.23 cm. What is the percentage error in the measurement of area?

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a

1.230.01×100

b

0.011.23×100

c

2×0.011.23×100

d

3×0.011.23×100

answer is C.

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Detailed Solution

Percentage error in measurement of a side 0.011.23×100

∴ Percentage error in measurement of area =2×0.011.23×100

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