Advertisements
Advertisements
Question
Define the term intensity of a sound wave. State the unit in which it is measured.
Solution
The intensity at any point of the medium is the amount of sound energy passing per second normally through unit area at that point. Its unit is microwatt per metre2.
APPEARS IN
RELATED QUESTIONS
How does a bat make use of ultrasonics waves to find its way?
Distinguish between loudness and intensity of sound.
What type of wave is represented :
(a) by density-distance graph?
(b) by displacement-distance graph?
What are longitudinal waves and transverse waves? Explain with the help of labelled diagrams.
The flash of a gun is seen by a man 3 seconds before the sound is heard. Calculate the distance of the gun from the man (Speed of sound in air is 332 m/s).
How is sound perceived by us?
Arrange the speeds of sound in gases, solids, and liquids in ascending order.
Rapid back and forth motion of a particle about its mean position is called _____.
