Demonstrations in physical optics

Destructive Interference — Where does the Light go?

Demonstration of constructive and destructive interference in a Michelson interferometer using diverging beams

Demonstration of complete destructive interference between the two beams leaving the interferometer for equal path lengths

Where does the light go in destructive interference?

Demonstration that there is light in each arm of the interferometer in destructive interference

Demonstration of light reflected back toward source simultaneously with light transmitted from interferometer for equal paths and also for unequal paths of the interferometer