Advertisements
Advertisements
Question
Why are the waves mentioned by you not audible to us?
Advertisements
Solution
The range of audible sound waves is 20 Hz to 20,000 Hz, whereas ultrasonic waves have a frequency of more than 20,000 Hz. Hence, ultrasonic waves are not audible to humans.
APPEARS IN
RELATED QUESTIONS
Select the correct alternative :
We can hear sound of frequency
What is sound ?
Select the correct option:
In case of longitudinal waves, the particles of the medium vibrate:
What do you mean by the frequency of sound?
Sound travels in the form of ______.
How does the sound produced by a vibrating object in a medium reach your ears?
Which of the following statements are correct?
- Sound is produced by vibrations.
- Sound requires a medium for propagation.
- Light and sound both require a medium for propagation.
- Sound travels slower than light.
Vibrations in a body produce ______.
What do you understand by the term echo?
Give scientific reasons.
In earlier times, people used to listen for the arrival of a distant train by putting their ear to the rail.
