Advertisements
Advertisements
Question
State three conditions necessary for hearing sound.
Advertisements
Solution
Necessary conditions for hearing a sound:
- There must be a vibrating body, capable of transferring its energy to its surroundings.
- These must be a material medium to pick the energy and then propagate it in a forward direction.
- There must be a receiver, so as to receive the sound vibrations and then transmit them to the brain for final interpretation, such as the human ear.
APPEARS IN
RELATED QUESTIONS
Write the audible range of frequency for the normal human ear.
Distinguish between longitudinal and transverse waves.
Give two examples each of longitudinal waves and transverse waves.
Before playing the orchestra in a musical concert, a sitarist tries to adjust the tension and pluck the strings suitably. By doing so he is adjusting :
Draw a displacement-distance graph of a wave and mark on it, the amplitude of wave by the letter 'a' and wavelength of wave by the letter λ.
A sound wave travels 2000 m in 8 s. What is the velocity of the sound?
If the energy in a longitudinal wave travels from south to north, the particles of the medium would be vibrating in _____.
What is a wave?
