AIIMS Physics: Questions 225 - 228 of 500

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Question number: 225

» Communication System » Bandwidth of Transmission Medium

Appeared in Year: 2003

Assertion-Reason▾

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

Question number: 226

» Laws of Motion » Force and Inertia

Appeared in Year: 2005

Assertion-Reason▾

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

Question number: 227

» Work, Energy and Power » Work-Energy Theorem

Appeared in Year: 2009

Assertion-Reason▾

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

Question number: 228

» Magnetic Effects of Current and Magnetism » Earth's Magnetic Field

Appeared in Year: 2004

Assertion-Reason▾

Assertion (Ꭺ)

The true geographic north direction is found by using a compass needle.

Reason (Ꭱ)

The magnetic meridian of the earth is along the axis of rotation of the earth.

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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