**Unformatted text preview: **Bright bands s The upper wave has to travel farther than the lower wave s The upper wave travels one wavelength farther s Therefore, the waves arrive in phase s Bright fringes occur when the path length differs by exactly mλ Quick Quiz What is the difference in path lengths for the dark bands? A.m λ B.(m+1) λ C.(m+½) λ D.(m+¾) λ E.Can not be predicted...

View
Full
Document