AIIMS (All India Institute of Medical Sciences) Physics: Questions 224 - 227 of 500

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Question number: 224

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

Appeared in Year: 1995

Assertion-Reason▾

Question

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: 225

» Communication System » Bandwidth of Transmission Medium

Appeared in Year: 2003

Assertion-Reason▾

Question

Assertion (Ꭺ)

Microwave communication is preferred over optical communication.

Reason (Ꭱ)

Microwaves provide large number of channels and band width compared to optical signals.

Choices

Choice (4) Response

a.

Both Ꭺ and Ꭱ are false

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.

Ꭺ is false but Ꭱ is true

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Question number: 226

» Laws of Motion » Force and Inertia

Appeared in Year: 2005

Assertion-Reason▾

Question

Assertion (Ꭺ)

Frictional forces are conservative forces.

Reason (Ꭱ)

Potential energy can be associated with frictional forces.

Choices

Choice (4) Response

a.

Both Ꭺ and Ꭱ are false

b.

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

c.

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

d.

Ꭺ is true but Ꭱ is false

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Question number: 227

» Work, Energy and Power » Work-Energy Theorem

Appeared in Year: 2009

Assertion-Reason▾

Question

Assertion (Ꭺ)

The change in kinetic energy of a particle is equal to the work done on it by the net force.

Reason (Ꭱ)

Change in kinetic energy of particle is equal to the work done only in case of system of one particle.

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.

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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