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संबंधित प्रश्न
What is a longitudinal wave ?
Explain the terms 'crests' and troughs' of a wave? What type of waves consist of crests and troughs?
In fig. 2 two musical notes of the same pitch and same loudness are played on a violin and on a piano. Their wave forms are as shown in the diagram below. Explain why the wave patterns are different.
What is a transverse wave? In which medium: solid, liquid or gas, can it be produced?
How are the wave velocity V, frequency f and wavelength λ of a wave related? Derive the relationship.
What is musical sound? Give an example.
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.
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.
Explain how the principle of echo is used by
The bat during its flight at night
Mention two cases in which there is no Doppler effect in sound?
