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A drop of mercury of radius 2 mm is spli...

A drop of mercury of radius 2 mm is split into 8 identical droplets. Find the increase in surface energy. Surface tension of mercury `=0.465Jm^-2`

A

23.4 `mu J`

B

`18.5 mu J`

C

`26.8 mu J`

D

`16.8 mu J`

Text Solution

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The correct Answer is:
A
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ERRORLESS -SURFACE TENSION-Exercise
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  3. A drop of mercury of radius 2 mm is split into 8 identical droplets. F...

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  6. The work done in blowing a soap bubble of radius 0.2 m is (the surface...

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  7. A liquid film is formed in a loop of area 0.05 m 2. Increase in its p...

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  8. In order to float a ring of area 0.04 m in a liquid of surface tension...

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  9. If two soap bubbles of equal radii r coalesce then the radius of curva...

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

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  11. The meniscus of mercury in the capillary tube is

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  12. When the temperature increased the angle of contact of a liquid

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  13. The angle of contanct between glass and mercury is

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  14. A mercury drop does not spread on a glass plate because the angle of c...

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  15. A liquid is coming out from a vertical tube. The relation between the ...

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  16. The parts of motor cars are polished by chromium because the angle of ...

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  17. A glass plate is partly dipped vertically in the mercury and the angle...

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  18. The liquid meniscus in a capillary tube will be convex, if the angle o...

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  19. If a water drop is kept between two glass plates, then its shape is

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  20. The value of contact angle for kerosene with solid surface.

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