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A raindrop falls near the surface of the...

A raindrop falls near the surface of the earth with almost uniform velocity because

A

its weight is negligible

B

the force of surface tension balances its weight

C

the force of viscosity of air balances its weight

D

the drops are changed and atmospheric electric feld balances its weight

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The correct Answer is:
C
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SURA PUBLICATION-PROPERTIES OF MATTER-Additional Questions (I. Multiple Choice Questions :)
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  2. Water is flowing in streamline motion throw a tube with its axis horiz...

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  3. There is a small hole near the bottom of an open tank filled with a li...

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  4. When a metal wire is stretched by a load the fractional change in its ...

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  5. When water droplets merge to form a bigger drop

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  6. Air is pushed into a soap bubble of radius r to double its radius, of ...

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  7. If more air is pushed in a soap bubble, the pressure in it will

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  8. If two soap bubbles of different radii are connected by a tube, then

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  9. The excess pressure inside a soap bubble is twice the excess pressure ...

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  10. Water rises in a vertical capillary tube upto a length of 10 cm if the...

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  11. Viscosity is a property of

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  12. The force of viscosity is

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  13. The viscous force acting between 2 layers of a liquid is given by (F)/...

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  14. A raindrop falls near the surface of the earth with almost uniform vel...

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  15. A piece of wood is taken deep inside a long column of water & released...

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  16. The rise of a liquid in a capillary tube depends on

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  17. The contact angle between a solid & a liquid is a property of

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  18. The properties of a surface are different from those of the bulk liqui...

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  19. When a capillary tube is dipped into a liquid the liquid neither rises...

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  20. A liquid is contained in a vertical tube a semicircular cross section ...

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