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A circular frame made of 20 cm long thin...

A circular frame made of 20 cm long thin wire is floating on the surface of water. If the surface tension of water is 70 dyne/cm. the required excess force to separate this frame from water will be :

A

2800 dyne

B

800 dyne

C

280 dyne

D

1800 dyne

Text Solution

Verified by Experts

The correct Answer is:
A
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