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If the surface tension of a rectangular ...

If the surface tension of a rectangular soap film is T and length l , total force acting on it is ,

A

2T/l

B

l/2T

C

T/2l

D

2 Tl

Text Solution

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The correct Answer is:
D
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NIKITA PUBLICATION-SURFACE TENSION-Multiple Choice Questions (Surface tension )
  1. When a small quantity of partially soluable impurity is added to wa...

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  2. When sugar is added to water , then surface tension of sugar solution ...

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  3. If the surface tension of a rectangular soap film is T and length l , ...

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  4. If there is no difference of pressure on the two sides of the surface,...

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  5. The molecular forces are

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  6. Two pieces of glass plate one upon the other with a little water betwe...

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  7. The surface energy is numerically equal to

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  8. The surface tension of molten cadmium with increase of temperature gen...

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  9. Two wooden sticks of negliable weight are floating parallel to each o...

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  10. The phenomenon of surface tension exhibited liquids is due to

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  11. The surface tension of pure water is

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  12. The surface tension of a liquid is 70 "dyne" // cm . In MKS system its...

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  13. If the maximum force in addition to the weight required to pull a wire...

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  14. If the length of a needle floating on water is 2 cm then the additiona...

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  15. The surface tension of a liquid is 10^(8) dyne cm^(-1). It is equivale...

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  16. The force required to take away a flat circular plate of radius 4 cm f...

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  17. A circular loop of a thin wire of radius (7//pi) cm is suspended fro...

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  18. A platinum wire ring of radius 2.5 cm floats horizontally on the surf...

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  19. A wire of length L metres, made of a material of specific gravity 8 is...

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  20. The length of needle foating on the surface of water is 1.5 cm the for...

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