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Two soap bubbles have radii in the ratio...

Two soap bubbles have radii in the ratio of `2:1` The ratio of the excess pressures inside them is

A

`1:2`

B

`1:4`

C

`2:1`

D

`4:1`

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

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

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

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

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

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

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

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

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

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

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

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

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

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