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प्रश्न
Can we hear (a) infrasonic waves (b) ultrasonic waves ?
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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.
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संबंधित प्रश्न
What is the audible range of the average human ear?
What is the range of frequencies associated with infrasound?
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 ?
Choose the infrasonic waves and ultrasonic waves from the following frequencies :
(i) 10,000 Hz
(ii) 30,000 Hz
(iii) 18 Hz
(iv) 50,000 Hz
(v) 10 Hz
What is the frequency range of hearing in humans ?
Which of the following sound frequencies cannot be heard by a human ear ?
(i) 10 Hz
(ii) 100 Hz
(iii) 10,000 Hz
(iv) 15 Hz
(v) 40,000 Hz
What are infrasonic waves ? Name two animals which produce infrasonic waves.
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)
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.
