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A soap film of surface tension 3 xx10^(-...

A soap film of surface tension `3 xx10^(-2) Nm^(-1)` formed in rectangular frame, can support a straw. The length of the film is 10 cm. Mass of the straw the film can support is

A

0.06 g

B

0.6 g

C

6 g

D

60 g

Text Solution

Verified by Experts

The correct Answer is:
B
`mg =2Tl impliesm=(2Tl)/g`
`=(2xx3xx10^(-2)xx10 xx10^(-2))/(9.8)=0.6 `gm
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