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The ratio of radii of two bubbles is 2 :...

The ratio of radii of two bubbles is `2 : 1`. What is the ratio of excess pressures inside them ?

A

`1:2`

B

`1:4`

C

`2:1`

D

`4:1`

Text Solution

Verified by Experts

The correct Answer is:
A
Excess pressure inside the bubble , `p = (4S)/(r)`
For two different situation, `(p_(1))/(p_(2)) = (4S//r_(1))/(4S//r_(2)) = (r_(2))/(r_(1)) = (1)/(2)`
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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-SURFACE TENSION -Exercise 2 (Miscellaneous Problems)
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  2. Water flows through a frictionless tube with a varying cross-section a...

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  3. The ratio of radii of two bubbles is 2 : 1. What is the ratio of exces...

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  4. 16cm^(3) of water flows per second through a capillary tube of radius ...

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  5. At critical temperature, the surface tension of a liquid

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  6. The rate of flow of liquid through a capillary tube of radius r is V, ...

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  7. A frame made of metallic wire enclosing a surface area A is covered wi...

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  8. Two spherical soap bubbles of radii a and b in vacuum coalesce under i...

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  9. The air pressure inside a soap bubbles of radius R exceeds the out sid...

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  10. On mixing the salt in water, the surface tension of water will

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  11. Two capillary tubes of radii 0.2 cm and 0.4 cm are dipped in the same ...

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  12. By inserting a capillary tube upto a depth l in water, the water rises...

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  13. A wire of length L metres, made of a material of specific gravity 8 is...

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  14. A soap bubble in air (two surfaces) has surface tension 0.03 Nm^(-1). ...

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  15. If a liquid is placed in a vertical cylinerical vessel and the vessel ...

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  16. Water rises in a capillary tube to a height h. It will rise to a heigh...

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  17. The radius of a spherical drop of water is 1 mm. If surface tension of...

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  18. What is ratio of surface energy of 1 small drop and 1 large drop, if 1...

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  19. Water rises to a height of 10.3 cm in a capilaary of height 18 cm abov...

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  20. Water rises to a height of 10 cm in a capillary tube and mercury falls...

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