# AP Physics B Wave Motion Multiple Choice Question (MCQs)

he AP Physics b Wave Motion Multiple Choice Question (MCQs) are:

01. Frequency of beats is equal to difference between frequencies of two waves
(a) Sum of
(b) Product of
(c) Difference between
(d) Ratio of

02. Maximum (loud) intensity of sound is called ______

03. Speed of fast moving vehicles is determine using the principle of ____
(a) Interference
(b) Doppler Effect
(c) Diffraction
(d) Formation of Beats

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04. When the Source of sound and listener move towards each other, the apparent frequency of sound ______

05. Persistence of Hearing for a Human Being is ____ sec

06. The production of alternate maxima (waxing) and minima (waning) of sound at a point of medium due to superposition of two sound waves of same amplitude and slightly different frequency traveling in same direction, in the same medium, is called as ______

07. The Phase change of Transverse Wave reflected from denser medium is _____

08. To detect harmful gases in mines, the principle of __________ is applied.

09. The Phase change of Longitudinal Wave reflected from rarer medium is _____

10. Applications of Doppler Effect is to determine ______ of stars and other astronomical bodies
(a) Size
(b) Distance
(c) Speed
(d) Mass

11. For a listener to hear an echo, reflecting surface must be large like big building or a hill, and must be at least ____ m away.

12. The Crest of Transverse Wave after reflection from rarer medium would be _____

13. RADAR determines the speed of airplanes, using the principle of _______________

14. What are the types of Simple Harmonic Progressive Wave?

15. The condition for formation of beats is that amplitude of two sound waves must be ___________

16. In Quincke’s Tube Experiment, ________ interference occurs when the path difference is (2n -1)λ

17. Speed of rotation of sun is determine using the principle of ____
(a) Interference
(b) Diffraction
(c) Compton Effect
(d) Doppler Effect

18. The turning back of incident ___________ wave in the same medium from a point on reflecting surface is called reflection of ____________ wave

19. The apparent change in frequency of sound heard by an observer, due to relative motion between source of sound and observer is known as _____

20. Quincke’s Tube Experiment is used to demonstrate _________ of sound waves

21. The wave is propagated through a medium due to oscillation of particles of medium. The velocity with which particles of medium oscillates about their mean position is called _____________

22. When two or more waves traveling through a medium, arrive at a point simultaneously, each wave produces its own displacement at that point _____________

23. The resultant displacement at that point is equal to the _________ the displacements due to all the waves
(a) Vector Sum of
(b) Vector Product of
(c) Scalar Product of
(d) Ratio of

24. Quincke’s Tube Experiment is also used to determine _________ of sound in air

25. The phenomenon of enhancement or cancellation of displacements produced due to the __________ of sound waves is called “Interference of Sound Waves”

26. Persistence of Vision for a Human Being is ____ sec

27. The trough after reflection from a denser medium would be ______

28. SONAR determines the speed of Submarines, using the principle of _______________

29. True or False: The direction of particle velocity, of a transverse wave, when reflected from a rarer medium would be reversed.

30. To produce sound note of very low frequency, the principle of ______ is applied

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## Answers: AP Physics B Wave Motion Multiple Choice Question (MCQs)

01. (c) Difference between
02. Waxing
03. (b) Doppler Effect
04. Increase
05. 0.1
06. Phenomenon of Beats
07. π
08. Formation of Beats
09. Zero
10. (c) Speed
11. 17
12. Crest
13. Doppler Effect
14. There are two types: Transverse waves and Longitudinal waves
15. equal or nearly equal
16. Destructive
17. (d) Doppler Effect
18. Transverse
19. Doppler Effect
20. Interference
21. Particle Velocity
22. independently of the other.
23. (a) Vector Sum of
24. Velocity
25. Superposition
26. 0.04
27. Crest
28. Doppler Effect
29. False {There would not be any change}
30. Formation of Beats