Sound and Waves CDS Questions

CDS Physics

Sound and Waves MCQ Questions


7.
The distance between two successive crests (or two successive troughs) of a transverse wave is called its:
A.
Amplitude
B.
Frequency
C.
Wavelength
D.
Time period
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ANSWER :
C. Wavelength
8.
The maximum displacement of a particle of the medium from its mean (rest) position during the passage of a wave is called the wave's:
A.
Amplitude
B.
Wavelength
C.
Phase
D.
Frequency
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ANSWER :
A. Amplitude
9.
The time taken by a particle of the medium to complete one full oscillation as a wave passes is called its:
A.
Frequency
B.
Time period
C.
Amplitude
D.
Wavelength
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ANSWER :
B. Time period
10.
Compared to longitudinal waves, transverse mechanical waves can travel through:
A.
Solids, liquids, and gases equally well
B.
Gases more easily than through solids
C.
Solids and along the surface of liquids, but not through the bulk of liquids or gases
D.
Only through a perfect vacuum
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ANSWER :
C. Solids and along the surface of liquids, but not through the bulk of liquids or gases
11.
Which of the following waves does NOT require a material medium for its propagation?
A.
Electromagnetic waves (such as light waves)
B.
Waves travelling along a stretched string
C.
Ripples (water waves) on the surface of a pond
D.
Sound waves
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ANSWER :
A. Electromagnetic waves (such as light waves)
12.
According to the principle of superposition of waves, when two or more waves overlap at a point, the resultant displacement at that point is:
A.
Always exactly zero, regardless of the waves involved
B.
Always equal to the displacement of only the larger wave
C.
The algebraic (vector) sum of the displacements that each individual wave would have produced alone
D.
Equal to the product of the individual displacements
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ANSWER :
C. The algebraic (vector) sum of the displacements that each individual wave would have produced alone