Advertisements
Advertisements
Question
What name is given to the sound waves of frequency too high for humans to hear ?
Advertisements
Solution
Ultrasonic sound is sound waves that are too high in frequency for human hearing.
APPEARS IN
RELATED QUESTIONS
What is the range of frequencies associated with infrasound?
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.
Fill in the blanks with suitable words.
A sound wave consists of places of higher pressure called ................. and places of................pressure called.................
Can we hear (a) infrasonic waves (b) ultrasonic waves ?
What is the difference between infrasonic waves and ultrasonic waves ?
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 is ultrasound ? What is the difference between ordinary sound and ultrasound ?
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.
For hearing the loudest ticking sound heard by the ear, find the angle x in Fig.12.4.
