The motion of the particles of a medium when a sound wave is passing through it is:
random
translatory
rotatory
oscillatory
Which of the following is a mechanical wave?
Light
Sound
X-rays
Radio waves
Which of the following quantities is transferred during wave propagation?
Speed
Particles
Mass
Energy
In a progressive longitudnal wave, the separation between a compression and immediate rarefaction is 2.4 m, if its speed is 360 m/s, the frequency is:
100 Hz
75 Hz
125 Hz
150 Hz
A baby cries with a frequency 712 Hz, if the speed of sound in air is 356m/s, the wavelength of sound is:
.05m
5 m
0.005 m
0.5 m
A siren has 16 holes and is making 960 revolutions per minute. The frequency of the sound produced by the siren is:
256 Hz
128 Hz
960 Hz
512 Hz
The distance between a compression and the next rarefaction of a longitudinal wave is
/2
/4
/3
A swing has a time period of 1.4 seconds. The no. of oscillations made by it within 1 minute 24 seconds will be:
60
20
80
40
The sound waves in air are
Seismic waves
Partially longitudinal and partially transverse
Transverse waves
Longitudinal waves
The amplitude of a wave is
the distance the wave moves in one second
the distance equal to one wave length
the maximum distance moved by the particles of a medium on either side of the mean position.
the distance the wave moves in one time period of the wave
