Youngs Double Slit: Intensities at Maxima & Minima

[Sparkle2009]

Homework Statement

In a youngs double slit experiment,if the slit widths are in the ratio 1:2,the ratio of intensities at maxima and minima will be ?

Homework Equations

The Attempt at a Solution

 

[quantumdude]

You have to show us an attempt at solving the problem.

 

[Sparkle2009]

http://alt1.artofproblemsolving.com/Forum/latexrender/pictures/1/6/c/16cc24abee441abafab0b0e8aab86810683179b2.gif

http://alt1.artofproblemsolving.com/Forum/latexrender/pictures/1/1/1/1110014a64f5d6091d4bf58d3acf19dcd3197c52.gif

http://alt2.artofproblemsolving.com/Forum/latexrender/pictures/c/8/7/c877c1f06820a40e30df6abcdf2d4bab2bfac464.gif

http://alt1.artofproblemsolving.com/Forum/latexrender/pictures/6/8/e/68e2a20dfee135caf7a7d20e489b4b3a701ab961.gif

the correct answer is 1:2

 

[Sparkle2009]

please answer

 

[Sparkle2009]

Cant anyone ans this?