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The ratio of the work done in blowing th...

The ratio of the work done in blowing the soap bubbles of radii in the ratio 1 :2 is ,

A

`1:4`

B

`4:1`

C

`1:2`

D

`2:1`

Text Solution

Verified by Experts

The correct Answer is:
A
`(W_(1))/(W_(2)) = (r_(1)^(2))/(r_(1)^(2))=1/4`
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NIKITA PUBLICATION-SURFACE TENSION-Multiple Choice Questions (Surface energy and surface tension )
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  4. The work done in blowing a soap bubble of radius 5 cm is

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  8. n number of water droplets, each of radius r, coalese, to form a singl...

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  14. The surface energy of a liquid drop is E. It is sprayed into 1000 equa...

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  16. The surface energy of liquid film on a ring of area 0.15 m^(2) is (sur...

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  17. The surface tension of soap solution is 2.1 xx 10^(-2) N/m . Then th...

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  19. A mercury drop of radius 1 cm is sprayed into 10^(6) drops of equal s...

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