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The external and internal diameter of a ...

The external and internal diameter of a hollow cylinder are determined with vernier calipers and the results are recorded as `(4.23 +- 0.001)cm` and `(3.89 +- 0.01)cm`. The thickness of the cyclinder wall within the limits of error is

A

`0.34 +- 0.1CM`

B

`0.34 +-0.02cm`

C

`0.34 +- 0.4 cm`

D

`0.17 +- 0.1cm`

Text Solution

Verified by Experts

The correct Answer is:
D
`t = (d_(2) - d_(1))/(2), Delta t = Delta t_(2) + Delta t_(1)`
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