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The internal and external diameters of a...

The internal and external diameters of a hollow cylinder are measured with the help of a Vernier callipers . Their values are `4.23 +- 0.01 cm and 3.87 +- 0.01 cm`, respectively . The thickness of the wall of the cylinder is

A

`(0.34 pm 0.02)cm`

B

`(0.17 pm 0.12)cm`

C

`(0.17 pm 0.01)cm`

D

`(0.34 pm 0.01)cm`

Text Solution

Verified by Experts

The correct Answer is:
A
Thickness of the wall
`=(4.23pm0.01)-(3.89pm0.01)=(0.34pm0.02)cm`
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