Ask Questions, Get Answers

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

Light from two sources , each of same frequency and travelling in same direction. but with intensity in ratio 4:1 interface. Find ratio of maximum to minimum intensity.

$(a)\;4:1 \\ (b)\;3:1 \\ (c)\;2:1 \\ (d)\; 9:1 $

Can you answer this question?

1 Answer

0 votes
$\large\frac{I_{max}} {I_{min}}$$ = \bigg(\large\frac{\sqrt {I_1}+ \sqrt {I_2}}{\sqrt {I_1}- \sqrt {I_2}}\bigg)^2$
$\qquad= \bigg[\large \frac{\sqrt {\frac {I_1}{I_2}} +1}{\sqrt {\frac{I_1}{I_2}}-1}\bigg]^2$
Hence d is the correct answer.


answered Feb 13, 2014 by meena.p
edited Jul 23, 2014 by thagee.vedartham

Related questions

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