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प्रश्न
What name is given to the sound waves of frequency too high for humans to hear ?
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उत्तर
Ultrasonic sound is sound waves that are too high in frequency for human hearing.
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संबंधित प्रश्न
What is the audible range of the average human ear?
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.
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 ultrasonic waves ? Name two animals which can produce ultrasonic 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)
One of the following can hear infrasound. This one is :
For hearing the loudest ticking sound heard by the ear, find the angle x in Fig.12.4.
