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Amount of energy required to blow a bubb...

Amount of energy required to blow a bubble of radius 5 cm (surface tension of soap is `30xx10^(-2)` N/m ) is

A

`1.88j`

B

`1.88xx10^(-1)` J

C

`1.88xx10^(-2)` J

D

`1.88xx10 J`

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The correct Answer is:
C
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TARGET PUBLICATION-SURFACE TENSION -COMPETITIVE THINKING
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  15. If the radius of a soap bubble is four times that of another, then the...

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  18. If a liquid does not wet glass, its angle of contact is

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  19. What is angle between pure water and glass?

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