
How does polarisation of light establish the transverse nature of light waves?

Important Questions on Polarisation of Light
What do you mean by polarised light? Define plane of vibration and plane of polarisation. How are they related?

State Brewster’s law of polarisation and draw a ray diagram to illustrate it.

What is meant by polarising angle? Show that when a ray of light is incident on a transparent surface at the polarising angle, the reflected and the refracted rays are at right angles to each other.

What is meant by plane-polarised light? What type of waves shows the property of polarisation? Give a method for producing a beam of plane-polarised light. Show how you will detect the presence of plane-polarised light. Give one practical use of polarised light.

How can a pile of glass plates be used to produce polarised light?

What is a Polaroid? What is meant by plane polarised light?


Describe a Polaroid. How is plane-polarised light obtained with its help? How will you use it to distinguish between unpolarised light and plane polarised light?
