Define intensity of a sound. Show that the intensity of a sound for a given frequency is directly proportional to the square of amplitude of the vibration.
What is Doppler's Effect? Derive an expression for the apparent frequency when a source of sound and the observer are moving towards each other.
What is Doppler's effect? Derive an expression for the apparent frequency received by a stationary observer when a source of sound is moving away from the observer.
Why is the roaring of a lion different than the sound of a mosquito?
A loud sound is heard at resonance.Why?
Explain with the figure, the meaning of beats.
Two notes, one produced by violin and the other by sitar, may have the same frequency, yet we can distinguish between them. Why?
Which has a more direct influence on the loudness of a sound wave: the displacement amplitude or the pressure amplitude? Explain your reasoning.
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