- #1
jisbon
- 476
- 30
- Homework Statement
- A point light source is used in a double-slit experiment. The light source contains 2 wavelengths (500nm and 600nm). Separation of the 2 silts is d=1mm. 2 sets of interference fringes are formed on the screen. Find the angles where the bright fringes are formed for both of the wavelengths.
- Relevant Equations
- ##d\sin \theta =m\lambda##
Hello all!
Having some problems understanding this question.
From what I know, bright fringes means that there will be constructive interferences, whereby ##d\sin \theta =m\lambda##
In this case, I know the d (separation of silts). However, what should I put in for wavelength? I went through some examples online and they all showed sources projecting the same wavelength. In cases of different wavelength like the one above, how should I proceed? Cheers