Advertisements
Advertisements
Question
Define frequency term in relation to a wave.
Advertisements
Solution
The number of vibrations made by a particle of the medium in one second is called the frequency of the waves. It is also defined as the number of waves passing through a point in one second. It's S.I. unit is hertz (Hz).
APPEARS IN
RELATED QUESTIONS
The human ear can detect continuous sounds in the frequency range from 20 Hz to 20,000 Hz. Assuming that the speed of sound in air is 330 m s−1 for all frequencies, calculate the wavelengths corresponding to the given extreme frequencies of the audible range.
The 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:
- Amplitudes
- Wavelengths
A wave passes from one medium to another medium. Mention one property of the wave out of speed, frequency or wavelength which does not change.
State the use of echo by a bat, dolphin and fisherman.
What adjustments would you make for tuning a stringed instrument for it to emit a note of a desired frequency?
What is a soundboard ? Explain the working of a soundboard with the help of a labelled diagram.
What do you mean by reflection of sound? State one condition for the reflection of a sound wave. Name a device in which reflection of sound wave is used.
Explain why, the ceilings of concert halls are curved.
Explain Reflection at curved surfaces.
