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A ring of inner and outer radii 8 and 9 ...

A ring of inner and outer radii 8 and 9 cm is pulled out of water surface with a force of [ S.T of water (T) = 70 dyne /cm]

A

`2.6 xx 10^(-2) N`

B

`12.6 xx 10^(-2) N`

C

`7.8 xx 10^(-2) N`

D

`3.08 xx 10^(-2) N`

Text Solution

Verified by Experts

The correct Answer is:
C
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