Properties of Solids & Liquids (AIIMS (All India Institute of Medical Sciences) Physics): Questions 21 - 24 of 48

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Question number: 21

» Properties of Solids & Liquids » Boyle's Law & Applications

Appeared in Year: 2006

Assertion-Reason▾

Assertion (Ꭺ)

A thin stainless steel needle can lay floating on a still water surface.

Reason (Ꭱ)

Any object floats when the buoyancy force balances the weight of the object.

Choices

Choice (4) Response

a.

Ꭺ is false but Ꭱ is true

b.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

c.

Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ

d.

Both Ꭺ and Ꭱ are false

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Question number: 22

» Properties of Solids & Liquids » Reynolds Number

Appeared in Year: 2005

Assertion-Reason▾

Assertion (Ꭺ)

For Reynold number Re > 2000, the flow of fluid is turbulent.

Reason (Ꭱ)

Inertial forces are dominant compared to the viscous forces at such high Reynold numbers

Choices

Choice (4) Response

a.

Ꭺ is true but Ꭱ is false

b.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

c.

Ꭺ is false but Ꭱ is true

d.

Both Ꭺ and Ꭱ are false

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Question number: 23

» Properties of Solids & Liquids » Boyle's Law & Applications

Appeared in Year: 1995

Assertion-Reason▾

Assertion (Ꭺ)

A needle placed carefully on the surface of water may float where a ball of the same material will always sink.

Reason (Ꭱ)

The buoyancy of an object depends both on the material and shape of the object.

Choices

Choice (4) Response

a.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

b.

Ꭺ is false but Ꭱ is true

c.

Ꭺ is true but Ꭱ is false

d.

Both Ꭺ and Ꭱ are false

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Question number: 24

» Properties of Solids & Liquids » Stress-Strain Relationship

Appeared in Year: 2002

Assertion-Reason▾

Assertion (Ꭺ)

Stress is the internal force per unit area of a body

Reason (Ꭱ)

Rubber is more elastic than steel

Choices

Choice (4) Response

a.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

b.

Ꭺ is true but Ꭱ is false

c.

Both Ꭺ and Ꭱ are false

d.

Ꭺ is false but Ꭱ is true

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