Advertisements
Advertisements
प्रश्न
Explain the term 'pitch' of a sound. On what factor does the 'pitch' of a sound depend ?
Advertisements
उत्तर
Pitch is a characteristic of the sound by which we can distinguish between different sounds of same loudness. It is the measure of shrillness of a sound. It helps us to distinguish between a man’s voice and a woman’s voice, even without seeing them. It depends on the frequency of the sound waves. Generally, woman’s voice has a higher frequency and hence a higher pitch.
संबंधित प्रश्न
Give two practical applications of reflection of sound waves.
Explain how bats use ultrasound to catch a prey.
Explain how defects in a metal block can be detected using ultrasound.
Fill in the blank with suitable word .
Sound waves are caused by ...................
Name the characteristic of sound which depends on (a) amplitude (b) frequency, and (c) waveform.
What is the name of the device which is used to find the depth of sea (or ocean) by using ultrasonic sound waves ?
Explain why, if we strike a table lightly, we hear a soft sound but if we hit the table hard, a loud sound is heard.
How is it that bats are able to fly at night without colliding with other objects ?
A sonar station picks up a return signal after 3 seconds. How far away is the object ? (Speed of sound in water = 1440 m/s).
In SONAR we use:
