Polarisation

The reflection index of water is $4/3$ and that of glass $3/2$. A beam of light travelling in water enters into glass. At the angle of incidence, the reflection ray will be pillorized$\left[{\tan }^{-1}\left(1.3\right)=48°\right]$. 

Yellow light indicate on smooth surface of block of dense fliest glass for which refractive index is $1.66$. Angle of refraction is ($(\mathrm{if} {\tan }^{-1}(1.66)=59°)$ 

At what angle in degree will light travelling in air be completely polarised horizontally when reflected from water? (Use:$n_{\mathrm{air}}=1$, $n_{\mathrm{water}}=1.33$ and $n_{\mathrm{crown} \mathrm{glass}}^{\text{'}}=1.520$)

The reflected light will be linearly polarised:

A polarized light of intensity $40 W{m}^{-2}$ is incident on the analyser at a certain angle. if the transmitted beam has an intensity of $20 W{m}^{-2}$, the angle made with the vertical is _____

An unpolarized light can be polarized by _____.

Linearly polarised light is obtained by _____ (Reflection/Refraction/Scattering/Dispersion) of light.

Define the term "Linearly polarised light".

A _____ is a device that allows only one half of the vibrations of the transmitted light to pass through the filter only in one plane. 

Mention two application of polaroids.

 What principle is responsible for the fact that certain sunglasses can reduce glare from reflected surfaces?

What is Brewster angle?

At polarising angle, the angle between the reflected ray and refracted ray from a surface is $90°$.

What do you mean by polarisation?

The phenomenon of rotation of plane polarised light is called _____ activity.

The phenomenon of rotation of plane polarised light is called optical activity.

Suppose transmitted light waves coming from the analyser. SO, when will the coming waves changes?

In what direction we can move the analyser in an experiment?

Analyser can also act as polariser in a polarisation experiment.

In the experiment of the polarisation, where do we have to put analyser?