Ask Questions, Get Answers

Want to ask us a question? Click here
Browse Questions
Home  >>  JEEMAIN and AIPMT  >>  Physics  >>  Class12  >>  Wave Optics
0 votes

In a young's double slit experiment two films of same thickness 't' but of different refractive indices $\mu_1$ and $\mu_2$ are placed in front of slit A and B respectively. If $( \mu_1 > \mu_2)$ the central maxima will

(a) shift towards A

(b) will shift toward B

(c) will not shift at all

(d) no pattern will be obtained

Can you answer this question?

1 Answer

0 votes
Optical path difference between the two rays coming from slit A and slit B will be
$(\mu_1 -1)t -(\mu_2-1)t$
$\qquad=\mu_1 t -\mu _2 t$
$\qquad= t( \mu_1-\mu_2)$
If $\mu_1 > \mu_2$
The path difference is $+ve$ .
So the central maxima will shift towards A.
Hence a is the correct answer.
answered Jan 21, 2014 by meena.p

Related questions

Ask Question
student study plans
JEE MAIN, CBSE, NEET Mobile and Tablet App
The ultimate mobile app to help you crack your examinations
Get the Android App