AIIMS Physics: Questions 209 - 212 of 500

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Question number: 209

» Properties of Solids & Liquids » Specific Gravity

Appeared in Year: 2005

Assertion-Reason▾

Assertion (Ꭺ)

Specific gravity of a fluid is a dimensionless quantity.

Reason (Ꭱ)

It is the ratio of density of fluid to the density of water.

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 true but Ꭱ is NOT the correct explanation of Ꭺ

Question number: 210

» Kinematics » Scalars and Vectors » Scalar Quantity

Appeared in Year: 2000

Assertion-Reason▾

Assertion (Ꭺ)

A physical quantity can be regarded as a vector, if magnitude as well as direction is associated with it.

Reason (Ꭱ)

A physical quantity can be regarded as a scalar quantity, if it is associated with magnitude only.

Choices

Choice (4) Response

a.

Ꭺ is false but Ꭱ is true

b.

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

c.

Ꭺ is true but Ꭱ is false

d.

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

Question number: 211

» Properties of Solids & Liquids » Heat Transfer » Convection

Appeared in Year: 2006

Assertion-Reason▾

Assertion (Ꭺ)

Perspiration from human body helps in cooling the body.

Reason (Ꭱ)

A thin layer of water on the skin enhances its emissivity.

Choices

Choice (4) Response

a.

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

b.

Ꭺ is false but Ꭱ is true

c.

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

d.

Ꭺ is true but Ꭱ is false

Question number: 212

» Ray Optics » Total Internal Reflection

Appeared in Year: 2005

Assertion-Reason▾

Assertion (Ꭺ)

Diamond glitters brilliantly.

Reason (Ꭱ)

Diamond does not absorb sunlight.

Choices

Choice (4) Response

a.

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

b.

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

c.

Ꭺ is false but Ꭱ is true

d.

Both Ꭺ and Ꭱ are false

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