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Assertion : Surface tension decreases wi...

Assertion : Surface tension decreases with increase in temperature .
Reason : On increasing temperature kinetic energy increases and intermolecular forces decreases .

A

Assertion and reason are true and reason is the correct explaination of assertion.

B

Assertion and reason are true but reason is not the correct explanation of assertion.

C

Assertion is true but reason is false.

D

Both assertion and reason are false.

Text Solution

Verified by Experts

The correct Answer is:
a
Assertion and reason are true and reason is the correct explanation of assertion.
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KUMAR PRAKASHAN-MECHANICAL PROPERTIES OF FLUIDS -SECTION - E (MCQS)
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  2. When is the work done by a force is positive and negative ?

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  3. Neglecting the density of air ,the terminal velocity obtained by a rai...

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  4. Two spherical soap bubbles of radii a and b in vacuum coalesce under i...

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  5. A liquid is kept in a cylindrical vessel which is being rotated about ...

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  6. A capillary tube of radus r is immersed in water and water rises in it...

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  7. Water is flowing with velocity 4ms^(-1) in a cylinder of diameter 8 cm...

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  8. Assertion : Surface tension decreases with increase in temperature . ...

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  9. Water is flowing in a non viscous tube as shown in the diagram .The di...

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  10. Two spherical soap bubbles of radii a and b in vacuum coalesce under i...

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  11. A small bulb is placed at the bottom of a tank containing water to a d...

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  12. The wettability of a surface by a liquid depends primarily on ……..

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  14. The cylindrical tube of a spray pump has radius R, one end of which ha...

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  15. Water rises to height h' in capillary tube .If the length of capillary...

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  16. Two non -mixing liquids of densities rho and np (ngt1) are put in cont...

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  17. A rectangular film of liquid is extended from 4cmxx2cm"to" 5cmxx4cm If...

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  18. Three liquids of densities rho(1),rho(2)andrho(3)(rho(1)gtrho(2)gtrho(...

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  19. A metal block of base area 0.2m^(2) is connected to a 0.02 kg mass via...

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