1. The problem statement, all variables and given/known data A point light source is used in a Double Slit experiment. The light source contains two wavelengths(500nm and 600nm). Separation of the two slits d=1mm. Two sets of interference fringes are formed on a screen. Find the angles θ where bright fringes are formed for both the wavelengths on the screen. 2. Relevant equations d sin θ= ΔL = +- mλ (bright fringes) 3. The attempt at a solution The question asked for angles. From the fringes created from the 500nm and 600nm waves. How many though, I don't know. So the first thing I tried to do was find out how many fringes there will be since it would give me the values of "m" and hence, the angles involved in each value of "m". And here, I have no idea how.