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A light wire AB of length 10 cm can slid...

A light wire AB of length 10 cm can slide on a vertical frame as shown in figure. There is a film of soap solution trapped between the frame and the wire. Find the load W that should be suspended from the wire to keep it in equilibrium. Neglect friction. Surface tension of soat solution `=25 dyn cm^-1`. Take g=10 ms^-2`

A

0.2 g

B

0.3 g

C

0.4 g

D

0.5 g

Text Solution

Verified by Experts

The correct Answer is:
D
`25xx10^(-3)xx2xx0.1=mxx10`
or `m=(5xx10^(-3))/(10)kg=0.5g`
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