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Assertion : Pressure in bubble ( r )...

Assertion : Pressure in bubble ( r ) in the atmosphere of pressure `P_0 is P_0+(4sigma)/r` where r is the radius and `sigma ` is surface tension .
Reason: `(4sigma)/r` is the excess pressure due to two surface exposed to the atmosphere .

A

Assertion is true , Reason is true ,`s_2` is correct explanation for Assetion .

B

Assertion is true , reason Is true Reason is not a correct explanation for Assertion .

C

Assertion is true , reason is false

D

Assetion is fales ,reason is true

Text Solution

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The correct Answer is:
B
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TARGET PUBLICATION-SURFACE TENSION -EVALUATION TEST
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  2. A capillary tube with very thin walls is attached to the beam of a bal...

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  3. One end of a glass capillary tube with a radius r is immersed into wat...

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  4. A capillary tube of radius r is lowered into water whose surface tensi...

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  5. A soap bubble of radius 'r' is blown up to form a bubble of radius 2r ...

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  6. Assertion : Pressure in bubble ( r ) in the atmosphere of pressure...

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  7. Assertion:- Rise of water level in capillary tube should be accounted ...

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  8. In gravity free space. The liquid in a capillary tube will rise to

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  9. Assertion : When there is a thin layer of water between two glass pla...

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  10. A glass capillary tube of radius r is placed vertically touching the s...

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  11. A capillary is dipped in water vessel kept on a freely falling lift, t...

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  12. Two spherical soap bubbles of radii r1 and r2 in vacuume coalesce unde...

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  13. Water rises to height of 5 cm in glass capillary tube . If the area of...

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

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  15. Two separate air bubbles (radii 0.002 cm and 0.004) formed of the same...

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  16. Two soap bubbles A and B are kept in a closed chamber where the air is...

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  17. Two parallel glass plates are held vertically at a small separation d ...

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  18. A glass rod of diameter d1 =1.5 mm is inserted symmetrically into a ...

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  19. When a loop of wire is dipped in a wetting liquid and is taken out. A ...

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  20. When a loop of wire is dipped in a wetting liquid and is taken out. A ...

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