Question

A small transparent slab containing material of $\mu + 1.5$is placed along $AS_{2}$as shown in figure. What will be the distance from O of the principal maxima and of the first minima on either side of the principal maxima obtained in the absence of the glass slab.

($AC = CO = D,S_{1}C = S_{2}C = d < < D$)

• A. 0.19D and -0.33D
• B. 0.19D and -0.55D
• C. 0.33D and – 0.65D
• D. 0.33D and -0.75D

Answer 1

Answer: (A)

0.19D and -0.33D

Answer 2

$0.19D$ and $- 0.33D$