Advertisements
Advertisements
प्रश्न
A sound wave travels at a speed of 339 m s−1. If its wavelength is 1.5 cm, what is the frequency of the wave? Will it be audible?
Advertisements
उत्तर
Speed of sound wave, v = 339 m s−1
Wavelength of sound wave, `lambda` = 1.5 cm = 0.015 m
Speed of sound wave = Wavelength × Frequency
`"v"=lambdaxxupsilon`
∴ `upsilon`
= `"v"/lambda`
= `339/0.015`
= 22600 Hz
The frequency range of audible sound for humans lies between 20 Hz to 20,000 Hz. Since the frequency of the given sound is more than 20,000 Hz, it is not audible.
APPEARS IN
संबंधित प्रश्न
In which of the three media, air, water or iron, does sound travel the fastest at a particular temperature?
Select the correct alternative :
The speed of sound in water is
Describe an experiment to show that sound can travel in water.
A jet aircraft flies at a speed of 410 m/s. What is this speed known as?
Which term is used to denote a speed greater than the speed of sound?
Calculate the speed of a sound wave whose frequency is 2 kHz and wavelength 65 cm.
Fill in the blanks with suitable words .
Wave speed in metres per second equals frequency in ............ multiplied by ..................... in ..................
The maximum speed of vibrations which produce audible sound will be in :
The velocity of sound is independent of temperature.
The velocity of sound by a tuning fork frequency of 480 Hz is 340 ms Its wavelength is ______.
