Derive an expression for resonant frequency.

Derive an expression for the apparent frequencies when the medium of source is at rest, observer in motion.

Derive an expression for the apparent frequencies when source and observer moving in the same direction.

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

What are beats ? Deduce the expression for beat frequency.

Derive an expression for decay constant.

Derive an expression for self inductance

Derive an expression for 1st order reaction.