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The length of a strip measured with a me...

The length of a strip measured with a meter rod is 10.0cm. Its width measured with a venier calipers is 1.00cm. The least count of the meter rod is 0.1 cm and that of vernier calipers 0.01cm. What will be error in its area?

A

`pm13%`

B

`pm7%`

C

`pm4%`

D

`pm2%`

Text Solution

Verified by Experts

The correct Answer is:
D
`:.((DeltaA)/(A))xx100=((Deltal)/(l))xx100+((Deltab)/(b))xx100`
`=(0.1)/(10)xx100+(0.01)/(1)xx100=pm2%`
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