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A number of small drop of mercury coales...

A number of small drop of mercury coalesce adiabatically to form a single drop. The temperature of the drop.

A

increases

B

decreases

C

remains unchanged

D

may increase or decrease depending on size.

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The correct Answer is:
A
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BINA LIBRARY-PROPERTIES OF FLUIDS-EXERCISE
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  2. When two capillary tubes of different diameters are dipped vertically ...

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  3. When two water drops merge to form a large drop

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  4. A spherical liquid drop of radius R is divided into eight equal drople...

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  5. A number of small drop of mercury coalesce adiabatically to form a sin...

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  6. Excess pressure inside a bubble is

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  7. Due to capillary action a liquid will rise in a tube if the angle of c...

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  8. When the temperature is increased the angle ofs contact of a liquid

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  9. The clouds float in the atmosphere because of

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  10. With increase in temperature viscosity of liquid and gases

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  11. Bernoulli's theorem is applicable for processes which are

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  12. Viscous force on small sphere of radius R moving in fluid varies as

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  13. The dimension of co - efficient of viscocity is

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  14. Two equal drops of water are falling through air with a steady velocit...

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  15. A ball of mass m and radius r is released in a viscous fluid. The valu...

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  16. The radius of a tube is doubled, the rate of flow increases by

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  17. Under a constant pressure head, the rate of flow of orderly volume flo...

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  18. The ternimal velocity of small sized spherical ball of radius r fallin...

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  19. The velocity of falling rain drops attain limited veloity because of

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  20. In Bernoulli's theorem which one of the following is conserved?

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