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If work W is done in blowing a bubble of...

If work `W` is done in blowing a bubble of radius `R` from a soap solution. Then the work done is blowing a bubble of radius `2R` from the same solution is

A

`W//2`

B

`2W`

C

`4W`

D

`2(1)/(3)W`

Text Solution

Verified by Experts

The correct Answer is:
C
`W=8pi R^(2)T`
`therefore W prop R^(2)`
If radius double, then work done will become four times.
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