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 bell vibrates 600 times within 3/2 seconds, its frequency and time period will be:
900 Hz, 0.0011 s
900 Hz; 1.1 s
400 Hz; 0.25s
400 Hz; 0.0025s
The motion of the particles of a medium when a sound wave is passing through it is:
random
translatory
rotatory
oscillatory
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
Arrange in increasing order - Speed of sound in steel, in distilled water, in sea water and in oxygen.
Steel < distilled water = sea water < oxygen.
Oxygen < distilled water = sea water < steel.
Steel > distilled water > sea water > oxygen.
Oxygen < distilled water < sea water < steel
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
Which of the following is a mechanical wave?
Light
Sound
X-rays
Radio waves
A wire of uniform cross-section and length of 7 m is fixed between two rigid points. If a stationary wave is set in it and made to vibrate with one loop, the wave length of vibration will be:
28 m
3.5 m
14 m
7 m
The distance between a compression and the next rarefaction of a longitudinal wave is
/2
/4
/3