AIIMS (All India Institute of Medical Sciences) Physics: Questions 152 - 156 of 500

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Question number: 152

» Dual Nature of Matter and Radiation » Black-Body Radiation

Appeared in Year: 2003

MCQ▾

Question

Shown below are the black body radiation curves at temperatures and . Which of the following plots is correct?

[AIIMS, AMU 2002]

Choices

Choice (4) Response

a.

Black body radiation curve: Choice A

Black Body Radiation Curve: Choice A

In figure, a black body radiation curve is shown

b.

Black body radiation curve: Choice B

Black Body Radiation Curve: Choice B

In figure, a black body radiation curve is shown

c.

Black body radiation curve: Choice C

Black Body Radiation Curve: Choice C

In figure, a black body radiation curve is shown

d.

Black body radiation curve: Choice D

Black Body Radiation Curve: Choice D

In figure, a black body radiation curve is shown

Question number: 153

» Atoms and Nuclei » Nuclear Fission and Fusion

Appeared in Year: 2006

MCQ▾

Question

The operation of a nuclear reactor is said to be critical, if the multiplication factor (k) has a value –

Choices

Choice (4) Response

a.

2.1

b.

1.5

c.

2.5

d.

1

Question number: 154

» Dual Nature of Matter and Radiation » De-Broglie Relation

Appeared in Year: 2003

MCQ▾

Question

If an electron and a photon propagate in the form of waves having the same wavelength, it implies that can they have the same –

Choices

Choice (4) Response

a.

Momentum

b.

Angular momentum

c.

Velocity

d.

Energy

Question number: 155

» Properties of Solids & Liquids » Heat Transfer » Radiation

Appeared in Year: 2001

MCQ▾

Question

The color of a star is an indication of its [AIIMS, RPMT 1988, 1989]

Choices

Choice (4) Response

a.

Distance

b.

Size

c.

Temperature

d.

Weight

Question number: 156

» Oscillations and Waves » Doppler Effect in Sound

MCQ▾

Question

A vehicle, with a horn of frequency is moving with a velocity of in a direction perpendicular to the straight line joining the observer and the vehicle. The observer perceives the sound to have a frequency. Then –

(Take velocity of sound in air 300 m/s)

Choices

Choice (4) Response

a.

b.

c.

d.

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