AIIMS Physics: Questions 185 - 189 of 500

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Question number: 185

» Oscillations and Waves » Displacement Relation for a Progressive Wave

Appeared in Year: 2001

MCQ▾

Question

How does the red shift confirm that the universe is expanding?

Choices

Choice (4) Response

a.

wavelength of light emitted by galaxies appears to decrease

b.

wavelength of light emitted by galaxies appears to increase

c.

wavelength of light emitted by galaxies appears to be the same

d.

Question does not provide sufficient data or is vague

Question number: 186

» Oscillations and Waves » Longitudinal and Transverse Waves

Appeared in Year: 2004

MCQ▾

Question

The waves produced by a motorboat sailing in water are –

Choices

Choice (4) Response

a.

Longitudinal

b.

Stationary

c.

Transverse

d.

Longitudinal and transverse

Question number: 187

» Atoms and Nuclei » Radioactive Decay Law

Appeared in Year: 2005

MCQ▾

Question

A radioactive material has a half – life of 10 days. What fraction of the material would remain after 30 days –

Choices

Choice (4) Response

a.

0.25

b.

0.5

c.

0.125

d.

0.33

Question number: 188

» Kinetic Theory of Gases » Law of Equipartition of Energy

Appeared in Year: 2004

MCQ▾

Question

Equation , Equation and Equation are root mean square, average and most probable speeds of molecules of a gas obeying Maxwell velocity distribution. Which of the following statements is correct?

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 189

» Wave Optics » Interference

Appeared in Year: 2000

MCQ▾

Question

The ratio of intensities of two waves is 9: 1. When they superimpose, the ratio of maximum to minimum intensity will become –

Choices

Choice (4) Response

a.

4: 1

b.

1: 1

c.

2: 1

d.

3: 1

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