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What will be the work done in blowing a ...

What will be the work done in blowing a soap bubble of radius 2cm, the surface tension of the soap solution is 20 dyne per cm and temperature remaining constant?

A

`440piergs`

B

`540piergs`

C

`640piergs`

D

`740piergs`

Text Solution

Verified by Experts

The correct Answer is:
A
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MBD PUBLICATION-MECHANICAL PROPERTIES OF FLUID (LIQUID AT REST)-QUESTION BANK
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  2. A soap film is formed on a rectangular wire frame of size 5cm xx 2cm. ...

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  3. What will be the work done in blowing a soap bubble of radius 2cm, the...

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  4. Suppose that 64 raindrops combine into a single drops. Calculate the r...

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  5. A film of soap solution is formed in a rectangular wire frame of lengt...

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  6. The surface tension of a liquid is 5 N/m. If a film is held on a ring ...

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  7. A drops of water is placed between two parallel glass plates which are...

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  8. The maximum force, in addition to the weight required to pull a wire f...

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  9. There is a small hole in a hollow sphere. The water enters in it when ...

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  10. A soap bubble of radius 1/sqrtpi cm is expanded to have double the rad...

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  11. The amount of work done to form a spherical soap bubble of radius 0.05...

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  12. A large drop of mercury of radius 1.0 mm splits into 1000 small drople...

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  13. 125 small water droplets, each of radius, 0.1 mm come together to form...

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  14. A boy blows a soap bubble of radius r meter. If S.T. of soap solution ...

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  15. The surface energy of a liquid drop is 20J. It is sprayed into 1000 id...

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  16. A soap bubble has radius r. The surface tension of the soap film is T....

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  17. A glass plate of size 4cm xx 2.5cm is in contact with water with its f...

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  18. A square plate of glass of each side 4cm and thickness of surface tens...

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  19. A big drop of a liquid of radius 2 cm splits into 1000 small droplets....

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  20. Tow spherical bubbles of radii 1cm and 2cm in vacuum coalesce under is...

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