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A soap film of surface tension 3 xx 10^(...

A soap film of surface tension `3 xx 10^(-2)` formed in a rectangular frame can support a straw as shown in Fig. If `g = 10 ms^(-12)`, the mass of the straw is

A

`0.006g`

B

`0.06g`

C

`0.6g`

D

`6g`

Text Solution

Verified by Experts

The correct Answer is:
C
`mxx10=2xx3x10^(-2)xx10/100`
or `m=6xx10^(-4)=6xx10^(-4)xx10^(3)g=0.6g`
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