State the conditions for steady state interference.

State the condition of destructive interference.

State the condition of constructive interference.

Write out the condition for constructive interference and destructive interference.

What are the conditions for obtaining good interference pattern ?

What are beats? State the conditions for the formation of beats.

The condition for destructive interference in terms of phase difference is given by .............. where n = 0, +- 2 .........

State the condition for series resonance. Obtain an expression for resonant frequency.

State the condition for series resonance. Obtain an expression for resonant frequency.

What is achromatism? Derive a condition to achieve achromatism for a lens combination. State the conditions for it to be converging

The condition for constructive interference in terms of phase difference is given by ............. where n = 0, +- 2 ..........