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On wearing a rain coat on which some gre...

On wearing a rain coat on which some greasy material is coated, a person does not wet in rain because-

A

the rain coat absorbs water

B

the cohesive force of water is more.

C

the adhesion between the rain coat and water becomes less.

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
C
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MOTION-SURFACE TENSION-Exercise - 1 Objective Problems | NEET
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  2. The soap and the detergent make water suitable for washing clothes bec...

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  3. On wearing a rain coat on which some greasy material is coated, a pers...

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  4. If there is a thin layer of water between two parallel plates then it ...

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  5. The length of a needle floating on water is 2.5 cm. The minimum force ...

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

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  7. If W is amount of work done in forming a soap bubble of volume V , the...

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  8. A big drop of water whose diameter is 0.2 cm, is broken into 27000 sma...

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  9. Several spherical drops of a liquid each of radius r coalesce to form ...

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  10. A soap bubble of diameter a is produced using the soap solution of sur...

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  11. The surface energy of a liquid drop is E. It is sprayed into 1000 equa...

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  12. Suppose that 64 raindrops combine into a single drop . Calculate the r...

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  13. When two soap bubbles coalesce to form a single bubble then its radius...

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  14. How many free surfaces are there in a liquid film ?

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  15. The number of free liquid surfaces in the air bubble inside a luquid i...

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

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  17. The excess of pressure inside a water drop is P(d) and that inside an ...

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  18. The exess pressure inside a drop of soap solution is Pb and that insid...

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  19. What will be the difference of pressure inside and outside a drop of w...

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  20. What should be the pressure inside a small air bubble of 0.1mm radius ...

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