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Statement-1: In gravity free space, the ...

Statement-1: In gravity free space, the liqid in a capillary tube will rise to infinite height.
Statement-2: In the absence of gravity there will be no force to prevent the rise of liquid due to surface tension.

A

Statement-1, is true, Statement-2 is true, Statement-2 is correct explanation for statement-1

B

Statement-1 is true, statement-2 is true, statement-2 is NOT a correct explantion for statement-1

C

statement-1 is true, statement-2 is false

D

statement-1 is false statement-2 is true

Text Solution

AI Generated Solution

The correct Answer is:
To analyze the statements given in the question, we will break down the concepts of capillarity, surface tension, and the effects of gravity step by step. ### Step-by-Step Solution: 1. **Understanding Capillarity**: - Capillarity is the ability of a liquid to flow in narrow spaces without the assistance of external forces. This phenomenon occurs due to the cohesive forces between liquid molecules and the adhesive forces between the liquid and the surface of the tube. 2. **Effect of Surface Tension**: - Surface tension is the force that acts at the surface of a liquid, causing it to behave as if it were covered with a stretched elastic membrane. In a capillary tube, surface tension acts to pull the liquid upwards against the force of gravity. 3. **Analyzing Statement 1**: - Statement 1 claims that in gravity-free space, the liquid in a capillary tube will rise to infinite height. - In the absence of gravity, there is no downward force acting on the liquid column. Hence, there is nothing to counteract the upward force exerted by surface tension. 4. **Analyzing Statement 2**: - Statement 2 states that in the absence of gravity, there will be no force to prevent the rise of liquid due to surface tension. - This is true because normally, the weight of the liquid (mg) acts downward, balancing the upward force due to surface tension. Without gravity (g = 0), this balancing force is absent, allowing the liquid to rise indefinitely. 5. **Conclusion**: - Both statements are correct. Statement 2 provides a valid explanation for Statement 1. Therefore, the answer to the question is that both statements are true, and Statement 2 is the correct explanation for Statement 1. ### Final Answer: Both Statement 1 and Statement 2 are true, and Statement 2 correctly explains Statement 1. ---
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ALLEN-ELASTICITY, SURFACE TENSION AND FLUID MECHANICS-Exercise 3 (Assertion & Reason)
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  2. Assertion :The angle of contact of a fluid with a solid increases with...

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  3. Statement-1: In gravity free space, the liqid in a capillary tube will...

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  4. Statement-1: It is better to wash the clothes in cold soap solution. ...

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  5. Statement-1: A gas filled balloon stops rising after it has attained a...

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  6. Statement-1: A parachute descends slowly whereas a stone dropped from ...

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  7. Statement-1: hot soup tastes better than the cold soup. Statement-2:...

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  8. Roofs of the huts are blown up during stormy days. Why?

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  9. Statement-1: The stream of water emerging from a wate tap "necks down"...

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  10. Statement-1: As wind flows left to right and a ball is spined as shown...

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  11. Statement-1: A block is immersed in a liquid inside a beaker which is ...

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  12. Statement-1: An ice cube is floating in water in a vessel at 0^(@)C wh...

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  13. Statement-1: Leaves and small insects float on the surface of water bu...

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  14. Statement-1: Weight of a empty balloon measured in air is w(1). If air...

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  15. Statement-1: The stretching of a coil is determined by its shear modul...

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  16. Assertion : At critical temperature, surface tension of liquids become...

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  17. Statement -1 : A large soap bubble expands while a small bubble shrink...

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  18. Statement-1: The size of a hydrogen increases as it rises in air. St...

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  19. Assertion Smaller drop of water resist deformation forces better than ...

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  20. Assertion : Specific gravity of a fluid is a dimensionless quantity. ...

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