Sound and Waves CDS Questions

CDS Physics

Sound and Waves MCQ Questions


1.
Wave motion is best described as:
A.
A change in pressure that does not move from its place
B.
A disturbance that transfers energy from one point to another without any net transfer of matter
C.
A flow of electric charge through a conductor
D.
A net transfer of matter from one point to another
😑 View Answer Rough Work Error
ANSWER :
B. A disturbance that transfers energy from one point to another without any net transfer of matter
2.
In a transverse wave, the particles of the medium vibrate:
A.
Randomly, with no fixed plane of vibration
B.
In a fixed circular path around the source
C.
Perpendicular to the direction of wave propagation
D.
Parallel to the direction of wave propagation
😑 View Answer Rough Work Error
ANSWER :
C. Perpendicular to the direction of wave propagation
3.
In a longitudinal wave, the particles of the medium vibrate:
A.
Parallel to the direction of wave propagation
B.
Only at the source, and nowhere else along the medium
C.
In a fixed circular loop around a point
D.
Perpendicular to the direction of wave propagation
😑 View Answer Rough Work Error
ANSWER :
A. Parallel to the direction of wave propagation
4.
Sound waves travelling through air are classified as:
A.
Transverse mechanical waves
B.
Longitudinal electromagnetic waves
C.
Longitudinal mechanical waves
D.
Transverse electromagnetic waves
😑 View Answer Rough Work Error
ANSWER :
C. Longitudinal mechanical waves
5.
The fundamental relationship connecting wave speed (v), frequency (f), and wavelength (lambda) is:
A.
v = f x lambda
B.
v = f + lambda
C.
v = lambda / f
D.
v = f / lambda
😑 View Answer Rough Work Error
ANSWER :
A. v = f x lambda
6.
The number of complete oscillations a wave completes in one second is called its:
A.
Wavelength
B.
Frequency
C.
Amplitude
D.
Time period
😑 View Answer Rough Work Error
ANSWER :
B. Frequency