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Question
What dose a polaroid consist of?
Solution
polaroid consists of long-chain molecules aligned in a particular direction
RELATED QUESTIONS
Draw a neat labelled diagram showing the plane of vibration and plane of polarisation for polarised light.
Show, using a simple polaroid, that light waves are transverse in nature. Intensity of light coming out of a polaroid does not change irrespective of the orientation of the pass axis of the polaroid. Explain why.
A beam of unpolarised light is incident on a glass-air interface. Show, using a suitable ray diagram, that light reflected from the interface is totally polarised, when μ = tan iB, where μ is the refractive index of glass with respect to air and iB is the Brewster's angle.
Two polaroids P1 and P2 are placed with their pass axes perpendicular to each other. Unpolarised light of intensity I0 is incident on P1. A third polaroid P3 is kept in between P1 and P2 such that its pass axis makes an angle of 60° with that of P1. Determine the intensity of light transmitted through P1, P2 and P3.
State two uses of Polaroid.
A beam of light is incident at the polarizing angle of 35° on a certain glass plate. The refractive index of the glass plate is :
State and obtain Malus’ law.
State Brewster’s law.
What is normal focusing?
Can reflection result in plane polarised light if the light is incident on the interface from the side with higher refractive index?
