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Write true or false for a given statement.
A sound is a form of energy.
In fig. shows a snap shot of a wave from of frequency 50 Hz in a string. The numbers in the diagram represents distance in centimeters. Fpr the wave motion, find
(a) Wavelength,
(b) Amplitude,
(c) Velocity.
Complete the following sentences :
Wave velocity = ________________ × wavelength.
Select the correct option:
A longitudinal wave consists of:
Select the correct option:
If the frequency of a wave is 25 Hz. the total number of compressions and rarefactions passing through a point in 1 second is :
From diagram given below calculate:
- velocity of P and Q
- frequency of P, when frequency of Q is 512 Hz.
Assume that both wave are traveling in same medium.
What is the value of sound of room temperature?
The smoke from the gun barrel is seen 2 second before the explosion is heard. If the speed of sound in air is 350 ms-1, calculate the distance of observer from the gun.
Sound is a ______ wave and needs a material medium to travel.
Describe with diagram, how compressions and rarefactions are produced.
