Advertisements
Advertisements
प्रश्न
How is sound perceived by us?
Advertisements
उत्तर
Sound requires a material medium for its propagation. It is produced when a body vibrates. The vibrations produced at a point are transmitted in the medium (air) from one point to the next and so on in the form of mechanical waves which produce compressions and rarefactions in air. These compressions and rarefactions produce vibrations in the eardrum which are perceived by us as sound.
संबंधित प्रश्न
Define time period.
What is sound? What type of waves are sound wave in air?
Distinguish between compression and rarefaction.
The separation between two consecutive crests in a transverse wave is 100 m. If wave velocity is 20 m s-1, find the frequency of wave.
Give a scientific reason.
If you were both on the moon, your friend will not be able to hear you call.
How is the sound produced?
The sound waves are reflected from an obstacle into the same medium from which they were incident. Which of the following changes?
Name three animals which can hear ultrasonic vibrations.
