Advertisements
Advertisements
Question
Define the term amplitude of a wave. Write its S.I. unit.
Advertisements
Solution
The maximum displacement of the particle of medium on either side of its mean position is called the amplitude of wave.
Its SI unit is metre.
APPEARS IN
RELATED QUESTIONS
How is sound produced ?
Define time period.
Calculate the wavelength of a sound wave whose frequency is 220 Hz and speed is 440 m/s in a given medium.
What is the nature of sound waves in air?
Answer the following question :
Can sound travel in vacuum?
A cannon is fired at A (see diagram). An observer at B hears two sounds. The first sound is heard after 1 second and the second 3s after the observer sees the flash. (Velocity of sound = 340 ms−1)
(i) Why does the observer see the flash before he hears the sound?
(ii) Calculate the distance x between the observer and the wall.
The time interval between a lighting flash and the first sound of thunder was found to be 6 s. If the speed of sound in air is 330 ms-1, find the distance of the flash from the observer.
Suppose that a sound wave and a light wave have the same frequency, then which one has a longer wavelength?
Why is the ceiling and wall behind the stage of good conference halls or concert halls made curved?
