Homework Statement
A beam of light is split into two coherent beams of intensity I which are in phase. The two
beams are sent through different paths and superimposed at the same spot on a screen. A path
difference is to be achieved by inserting a glass window of refractive index of 1.7 in the...
Homework Statement
Two sheets of Polaroid are placed on top of each other with an angle φ between their pass
directions. Calculate be the ratio of transmitted to incident intensity for initially unpolarised
light if φ = 30°.I copied the question exactly, I'm pretty sure that typo wasn't on...