Advertisements
Advertisements
प्रश्न
What are infrasonic waves?
Advertisements
उत्तर
The waves of frequency below 20 Hz are called infrasonic waves.
संबंधित प्रश्न
How is the frequency of a stretched string related to its length?
A certain sound has a frequency of 256 hertz and a wavelength of 1.3 m.
1) Calculate the speed with which this sound travels
2) What difference would be felt by a listener between the above sound and another sound traveling at the same speed, but of wavelength 2.6 m?
Displacement distance graph of two sound waves A and B, travelling in a medium, are as shown in the diagram below.
Study the two sound waves and compare their:
1) Amplitudes
2) Wavelengths
Define wave velocity term in relation to a wave.
A wave passes from one medium to another medium. Mention one property of the wave out of speed, frequency or wavelength which changes.
How do bats avoid obstacles in their way, when in flight?
What adjustments would you make for tuning a stringed instrument for it to emit a note of a desired frequency?
What is a stethoscope ? Name the principle on which a stethoscope works.
Why will an echo not be heard when the distance between the source of the sound and the reflecting surface is 10 m?
