A source emitting light of wavelengths 480 am and 600 nm is used in a double slit interference experiment. The separation between the slits is 0.25 mm and the interference is observed on n screen placed at 150 cm from the slits. Find the linear separation between the first maximum next to the central maximum) corresponding to the two wavelengths.
Given, separation between the slits 
The distance between the screen and the slit, 
The first maximum occurs at a distance 
For 
,
And for 
Therefore, linear separation between the first maximum next to the central maximum) corresponding to the two wavelengths is
1