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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

`0.35+-0.02`m

B

`0.18+-0.02cm`

C

`0.36+-0.01cm`

D

`0.18+-0.01cm`

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