Embibe Experts Solutions for Chapter: Wave Optics, Exercise 1: BEGINNER'S BOX - 1

Consider interference between two sources of intensities $I$ and $4I$. Obtain intensity at a point where the phase difference is $\frac{\pi }{2}$.

Two coherent sources, whose intensity ratio is $16:1$ produce interference fringes. If the ratio of intensity of maxima and minima in the fringe system is $\frac{25}{3\alpha }$. Find value of  $\alpha .$

Consider interference between two sources of intensity $I$ and $4I$. Find the resultant intensity. where the phase difference is

(a) $\frac{\pi }{4}$ (b) $\pi$  (c) $4\pi$