Name the following
Numericals
(Blank)
100
The time taken by a particle of a medium to complete one vibration
Time period
100
The frequency of a sound wave is 50 Hz. How many times does it vibrate in a minute?
3000
100
0.2 mm
200
The maximum displacement of a particle from its mean position
Amplitude
200
A sound wave travels at a speed of 330 m/s. If its wavelength is 1.5 cm, find the frequency of the wave.
22000 Hz
200
Compare the wavelengths of A and B.
1:2
300
The distance travelled by a particle in one wave.
Wavelength
300
A person is listening to a music tone of frequency 500 Hz siting at a distance of 450 m from the source of the sound. What is the time interval between two successive compressions from the source?
0.002 s
400
The wave in which the particles vibrate about their mean positions in the direction of propagation of sound.
Longitudinal Waves
400
The speed of sound in air is 340 m/s and in water is 1450 m/s. It takes 2 s for sound to reach a certain distance from the source placed in air.
Find the distance.
How much time will it take to travel the same distance in water?
680 m
0.47 s
500
The region of a longitudinal wave where density and pressure in a medium is maximum.
Compression
500
A wave pulse of frequency 200 Hz, on a string moves a distance 8 m in 0.05 s. Calculate :
the wave velocity of the pulse
the wavelength of the wave on the string
160 m/s
0.8 m