wavelength=ax/D
can anyone explain all the conditions relating to this formula? like increasing or decreasing the separation of slit and width of each slit and or any other condition if so!! plz be quick ITS MY EXAM TOMORROW !!!!!!!!!!!!!!!!!!

Question

wavelength=ax/D 
can anyone explain all the conditions relating to this formula? like increasing or decreasing the separation of slit and width of each slit and or any other condition if so!! plz be quick ITS MY EXAM TOMORROW !!!!!!!!!!!!!!!!!!

anonymous · Answer

y = n wav.len D/d is a equation for nth bright fringe formed due to the interference of light rays from 2 small opening made in slit of width d kept at a distance of D units away from the screen . on increasing d fringe width will decrease!!

anonymous · Answer

any other condition ?

anonymous · Answer

y is proportional to D and larger the wavelength wider is the bright fringe on the screen