Advertisements
Advertisements
Question
Name the waves used for sound ranging. State one reason for their use.
Solution
Ultrasonic waves are utilized for sound ranging because they are able to travel a great distance without deviating, are difficult to absorb in a medium, and can be focused into a tight beam.
APPEARS IN
RELATED QUESTIONS
Which characteristics of the sound helps you to identify your friend by his voice while sitting with others in a dark room?
Write true or false for a given statement.
A ticking clock sound is heard late when heard through a metal.
Are sound waves longitudinal or transverse?
State the speed of (i) light and (ii) sound in air?
Complete the following sentences :
Sound cannot travel through __________, but it requires a ___________.
An observer sitting in line of two tanks watches the flashes of two tanks firing at each other at the same time, but he hears the sounds of two shots 2s and 3.5s after seeing the flashes. If distance between the two tanks is 510m, find the speed of sound.
How is the sound produced?
Distinguish between light and sound waves. What are the consequences of the large difference in the speed of sound and that of light? Briefly explain them.
Explain how the principle of echo is used by
The bat during its flight at night
______ is an unwanted sound.
