Three lights, red, violet and green are used successively in YDSE. Which one will have the maximum fringe width ?

red violet green all will have the same fringe width

red

\(\beta\) ∝ \(\lambda \) Correct answer is Red, as it has maximum wavelength . Fringe width is directly proportional to the wavelength. So red has the maximum fringe width  whereas Violet has minimum fringe width.