What is 'Doppler effect' ?

What is Doppler's effect? Derive an expression for the apparent frequencies when the medium at source is in motion, observe at rest.

What is Doppler's effect?

Dopplers Effect

What is Doppler's effect?Derive a general expression for the apparent frequency when both source and observer are in relative motion.

Doppler Effect -1

Doppler Effect -2

Doppler's Effect