QUESTIONS

A light-ray is incident on a glass plate of refractive index $1.54$. If the reflected ray is completely plane polarised, then determine angle of refraction. (Given: $\tan {57}^{\circ }=1.54$ and $\sin 40{.5}^{\circ }=0.6493$).

A light-ray is incident on a glass plate of refractive index $1.54$. If the reflected ray is completely plane polarised, then determine critical angle. (Given: $\tan {57}^{\circ }=1.54$ and $\sin 40{.5}^{\circ }=0.6493$).

At what angle $\theta$ above the horizon should the sun be situated so that its light reflected from the surface of still water of the pond be totally polarised?

Given: refractive index of water $n=1.327$ and $\tan {53}^{\circ }=1.327$.

When sunlight is incident on water at an angle of $53°$, the reflected light is found to be completely plane polarised. Determine angle of refraction of light.

When sunlight is incident on water at an angle of $53°$, the reflected light is found to be completely plane polarised. Determine refractive index of water.

The critical angle for a medium is $45°$. What is polarising angle? Angle of refraction?

The refractive index of water is $\raisebox{1ex}{$4$}\!\left/ \!\raisebox{-1ex}{$3$}\right.$ and that of glass $\raisebox{1ex}{$3$}\!\left/ \!\raisebox{-1ex}{$2$}\right.$. A beam of light travelling in water enters glass. For what angle of incidence the reflected light will be completely plane-polarised? $\left(\tan {48}^{\circ }{22}^{\mathrm{\prime }}=1.125\right)$

The refractive indices of glass and water are $1.54$ and $1.33$ respectively. For which light-ray the polarising angle will be greater, a ray going from water to glass or a ray going from glass to water?