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Chapter:

20+ Waves Solved MCQs

in A Level Physics

These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: Uncategorized topics .

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Chapter: Waves
1.

intensity of sun's radiation is about {{}}

A. 1.0 kW m-2
B. 20 kW m-2
C. 5 kW m-2
D. 8 kW m-2
Answer» A. 1.0 kW m-2
discuss
2.

When light enters from vacuum in to glass, it's velocity

A. decreases
B. remains same
C. increases
D. varies depending on mass of glass
Answer» A. decreases
discuss
3.

As wave travels, intensity

A. increases
B. remains same
C. decreases
D. varies
Answer» C. decreases
discuss
4.

Waves that move through materials are called

A. progressive waves
B. EM waves
C. radio waves
D. UV waves
Answer» A. progressive waves
discuss
5.

Speed of sound in air is {{}}

A. 280 m s-1
B. 300 m s-1
C. 350 m s-1
D. 330 m s-1
Answer» D. 330 m s-1
discuss
6.

Particles vibrate about their mean positions and transfer

A. frequency
B. wavelength
C. energy
D. power
Answer» C. energy
discuss
7.

Speed of electromagnetic radiation is independent of

A. wavelength
B. amplitude
C. time period
D. frequency
Answer» D. frequency
discuss
8.

Mechanical waves include

A. sound
B. light
C. EM waves
D. UV waves
Answer» A. sound
discuss
9.

A complete cycle of wave is around

A. 90°
B. 180°
C. 45°
D. 360°
Answer» D. 360°
discuss
10.

Changing magnetic field induces

A. charge
B. current
C. frequency
D. voltage
Answer» B. current
discuss
11.

Phase difference is measured in

A. degrees
B. meters
C. seconds
D. newton
Answer» A. degrees
discuss
12.

Speed at which stars and galaxies are moving away from us is determined by phenomena of

A. blue shift
B. yellow shift
C. red shift
D. orange shift
Answer» C. red shift
discuss
13.

Electric and magnetic fields vary at angle of

A. 30°
B. 90°
C. 45°
D. 180°
Answer» B. 90°
discuss
14.

Unification of electromagnetic and weak nuclear forces was done by

A. Maxwell
B. Faraday
C. Kirchhoff
D. Abdus-Salam
Answer» D. Abdus-Salam
discuss
15.

Frequency and time period are

A. directly related
B. not related
C. inversely related
D. directly proportional
Answer» C. inversely related
discuss
16.

Amount by which one oscillation leads or lags behind another is called

A. in phase
B. intensity
C. phase difference
D. superposition
Answer» C. phase difference
discuss
17.

Number of oscillations per unit time is called

A. wavelength
B. amplitude
C. displacement
D. frequency
Answer» D. frequency
discuss
18.

If the particles of medium vibrate at right angles to the direction of velocity then wave is

A. longitudinal
B. transverse
C. abrupt
D. sound
Answer» B. transverse
discuss
19.

Intensity of a wave is directly proportional to the

A. amplitude
B. square of amplitude
C. cube of amplitude
D. frequency
Answer» B. square of amplitude
discuss
20.

Wave speed is directly proportional to

A. frequency
B. amplitude
C. wavelength
D. energy
Answer» C. wavelength
discuss
21.

Longitudinal waves gives rise to

A. amplitude
B. frequency
C. wavelength
D. high and low pressure regions
Answer» D. high and low pressure regions
discuss
22.

Ranges of waves which overlap are

A. x-rays and gamma rays
B. x-rays and infrared rays
C. gamma rays and infrared rays
D. UV rays and infrared rays
Answer» A. x-rays and gamma rays
discuss

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