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Statement-1: The size of a hydrogen incr...

Statement-1: The size of a hydrogen increases as it rises in air.
Statement-2: The material of the balloon can be easily stretched.

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

Verified by Experts

The correct Answer is:
B
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These questions consist two statements each, printed as Assertion and reason, while answering these question you are required to choose any one of the following four responsis: (a) If both the assertion and reason are true and reason is a true explanation of the assertion. (b) If both the assertion and reason are true but the reason is not the correct explanation of assertion. (c ) If the assertion is true but reason is false. (d) If both the assertion and reason are false. Q. Assertion: The size of hydrogen bolloon increases as it rises in air. Reason: The material of the bolloon can easily stretched.

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Statement-1: The angle of contact of a liquid decrease with increase in temeperature Statement-2: With increase in temperature the surface tension of liquid increase.

Statement A: The melting point of water decreases with increasing pressure. Statement B : The boiling point of water rises with rising pressure.

Statement-1: Nuclei of different atom have same size Statement-2: R=R_(0)A^(1//3)

Statement-1 : Sound travels faster in moist air Statement-2 : The density of moist air is less then density of dry air.

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ALLEN-ELASTICITY, SURFACE TENSION AND FLUID MECHANICS-Exercise 3 (Assertion & Reason)
  1. Statement-1: In gravity free space, the liqid in a capillary tube will...

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

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

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

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

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  6. Statement-1: Roofs of buildings are blown off during a strong storm. ...

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

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

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

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

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

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

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

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

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

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

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  17. Statement I: Smaller drops of liquid resist deforming forces better th...

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

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  19. Statement-1: For reynold number R(e)gt2000 the flow of fluid is turbul...

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  20. Statement-1: A thin stainless steel needle can lay floating on a still...

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