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Two soap bubbles of radii r(1) and r(2) ...

Two soap bubbles of radii `r_(1)` and `r_(2)` equal to 4 cm and 5 cm are touching each other over a common surface `S_(1)S_(2)` (shown in figure). Its radius will be

A

4 cm

B

20 cm

C

5 cm

D

4.5 cm

Text Solution

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The correct Answer is:
B
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MOTION-SURFACE TENSION-Exercise - 3 | Section- A Previous Year Problems | NEET/Other
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  2. If the surface tension of a liquid is T , the gain in surface energy f...

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  3. Two soap bubbles of radii r(1) and r(2) equal to 4 cm and 5 cm are to...

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  4. The radius of a soap bubble is r. the surface tension of soap solution...

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  5. A liquid will not wet the surface of a solid if the angle of contact ...

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  6. Excess of pressure inside a soap bubble is

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  7. In a capillary tube experiment, a vertical 30 cm long capillary tube i...

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  8. Radius of a capillary is 2xx10^(-3)m. A liquid of weight 6.28xx10^(-4)...

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  9. A capillary tube of radius r can support a liquid of weight 6.28xx10^(...

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  10. Water rises in a capillary tube upto a certain height such that the u...

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  11. Which one of the following will make its way most easily through the t...

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  12. Inside a drop excess pressure is maximum in

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  13. When charge is given to a soap bubble, it showns :

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  14. The diameter of one drop of water is 0.2 cm. The work done in breaking...

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  15. Calculate the force required to separate the glass plates of area 10^(...

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  16. If two bubble of radii 0.03 cm and 0.04 cm come in contact with each o...

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  17. Work done in forming a soap bubble of radius R is W. Then workdone is ...

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  18. In a U-tube diameter of two limbs are 0.5 cm and 1 cm respectively and...

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  19. A liquid will not wet the surface of a solid if the angle of contact ...

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  20. Internal radius of a capilary tube is (1)/(2)cm and surface tension of...

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