Advertisements
Advertisements
प्रश्न
Can we hear (a) infrasonic waves (b) ultrasonic waves ?
Advertisements
उत्तर
No, we cannot hear infrasonic waves and ultrasonic waves because the frequencies of both these waves fall beyond the human audible range of frequencies.
APPEARS IN
संबंधित प्रश्न
What is the range of frequencies associated with ultrasound?
A person has a hearing range from 20 Hz to 20 kHz. 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.
Name the organs of hearing in our body.
What name is given to the sound waves of frequency too high for humans to hear ?
What is the difference between infrasonic waves and ultrasonic waves ?
What is the frequency range of hearing in humans ?
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)
One of the following can hear infrasound. This one is :
Which of the above two graphs (a) and (b) (Fig.12.3) representing the human voice is likely to be the male voice? Give a reason for your answer.

A girl is sitting in the middle of a park of dimension 12 m × 12 m. On the left side of it, there is a building adjoining the park and on the right side of the park, there is a road adjoining the park. A sound is produced on the road by a cracker. Is it possible for the girl to hear the echo of this sound? Explain your answer.
