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If the surface tension of water is 7.3 ...

If the surface tension of water is ` 7.3 xx 10^(-2)` N/m then the excess pressure inside a spherical drop of water of radius ` 1 xx 10^(-3)` m formed will be

A

`14.6 N//m^(2)`

B

`146 N//m^(2)`

C

`1460 N//m^(2)`

D

` 14600 N//m^(2)`

Text Solution

Verified by Experts

The correct Answer is:
B
` P = (2T)/r = (2 xx 7. 3 xx 10^(-2))/(1 xx 10^(-3)) = 146 " N/m"^(2)`
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NIKITA PUBLICATION-SURFACE TENSION-Multiple Choice Questions (Excess pressure due to surface tension )
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  2. The ratio of excess pressure inside a soap bubble to the excess of pre...

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  3. If the surface tension of water is 7.3 xx 10^(-2) N/m then the excess...

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  4. Pressure inside two soap bubble are 1.02 and 1.03 atm . Then ratio of ...

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  5. The spherical liquid bubble of diameter 4 xx 10^(-3) m has inner and ...

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  6. Two soap bubble of radii 3 mm and 4 mm are in contact radius of curvat...

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  7. Two soap bubbles of radii 1 mm and 2 mm merge isothermally . Then radi...

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  8. The excess pressure inside a soap bubble of volume V is P . Then exces...

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  9. If the volume of two soap bubbles are V and 8V bubbles is

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  10. The volumes of three soap bubbles are in the ratio of 27:64:125. Then ...

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  11. At 20^(@)C the radius of mercury drop is 3 mm and its surface tension...

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  12. What would be the excess pressure in side a small air bubble of 0.2 m...

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  13. If the surface tension of a soap water is 0.04 N/m Then excess pressur...

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  14. The rise of a liquid due to surface tension in a narrow capillary tube...

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  15. P is the excess pressure inside a water drop . If that drop is divided...

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  16. The level of liquid in a capillary tube is plane,because

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  17. Two soap bubbles are blown. In first soap bubble excess pressure is 4 ...

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  18. The bubbles have radii in the ratio 3 : 4. the ratio of excess pressur...

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  19. A small air bubble of radius 0.1 mm is situated at a depth of 10 m bel...

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  20. The exess pressure inside a drop of soap solution is Pd and that insid...

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