Advertisements
Advertisements
प्रश्न
What name is given to the sound waves of frequency too high for humans to hear ?
उत्तर
Ultrasonic sound is sound waves that are too high in frequency for human hearing.
APPEARS IN
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 low for humans to hear ?
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 ultrasound ? What is the difference between ordinary sound and ultrasound ?
What are infrasonic waves ? Name two animals which produce infrasonic waves.
What are ultrasonic waves ? Name two animals which can produce ultrasonic waves.
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.
For hearing the loudest ticking sound heard by the ear, find the angle x in Fig.12.4.
