List of top Physics Questions on Wave Optics asked in UP Board XII

Write lens maker's formula for a thin lens. On its basis, discuss the effect of refractive index of lens material and radius of curvature of lens surfaces on its focal length.
Angular momentum of electron in the second orbit of hydrogen atom is :
What do you mean by 'impedance' in an alternating circuit? Write its unit. Find the reading of the ammeter and voltmeter in the given circuit.
State the conditions of interference of light. Obtain the expression for the fringe width in Young's double slit experiment.
What is the meaning of wavefront? Explain the laws of reflection by explaining Huygens' principle of wavefront.