Double Slit ExperimentConstructive Interference (Bright, maxima): d sin θ = mλDestructive Interference (Dark, minima): d sin θ = (m + ½)λ
Sample Problem #1 Monochromatic light falling on twoslits 0.016 mm apart from each other produces a 5th order fringe at an angle of 8.8 degrees. What is the wavelength of the light used?
Sample Problem #2A screen containing two slits 0.100 mm apart is 1.2 m from the screen. Light with a wavelength of 500 nm falls on the slits from a distant source. Approximately how far apart are theadjacent bright interference fringes on the screen?
Sample Problem #2
MirrorsMirrors- f is + for concave, - for convex- do and di are + for real objects & images- do and di are - for virtual objects & images- m is + for upright images, - for inverted images
LensesLenses- f is + for converging, - for diverging- do and di are + for real objects & images- do and di are - for virtual objects & images- m is + for upright images, - for inverted images