MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Speed of Sound

A person has ...

Question

A person has a hearing range from $20 H z$ to $20 k H z$ . What are the typical wavelengths of sound waves in air corresponding to these two frequencies? (Take the speed of sound in air as $344 m s^{- 1}$ )

Open in App

Solution

We know that $w a v e l e n g t h (λ) = \frac{s p e e d (v)}{f r e q u e n c y (f)}$
Hence the wavelength range of audible sound will be
$\frac{344}{20000}$ to $\frac{344}{20}$ $=$ $17.2 \times 10^{- 3} m e t r e s$ to $17.2 m e t r e s .$

Suggest Corrections

thumbs-up

0

Similar questions

Q. (a) What are infrasonic waves ? Name two animals which produce infrasonic waves.
(b) What are ultrasonic waves ? Name two animals which can produce ultrasonic waves.
(c) The audible range of frequencies of an average human ear is from 20 Hz to 20 kHz. Calculate the corresponding wavelengths. (Speed of sound in air is 344 ms^–1)

Q. A person can hear sound waves in the frequency range 20 Hz to 20 kHz. Find the minimum and the maximum wavelengths of sound that is audible to the person. The speed of sound is 360 m s⁻¹.

Q. A bat can hear sound of frequencies upto 120 kHz. The minimum wavelength of sound which it can hear is : ( Take speed of sound in air as 344

m s^{- 1}

)

Q. Sound with frequencies in the range of

20 H z

20 k H z

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Speed of Sound

PHYSICS

Watch in App

explore_more_icon

Explore more

Standard IX Physics

Join BYJU'S Learning Program

CrossIcon