When unpolarized light is incident at an angl | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) According to Brewster's law,when the reflected ray is completely polarized,the angle of incidence is the Brewster's angle $(i_p)$.At this angle,th

Vedclass · Accepted Answer

$30$

Vedclass · Answer

(A) According to Brewster's law,when the reflected ray is completely polarized,the angle of incidence is the Brewster's angle $(i_p)$.At this angle,the reflected ray and the refracted ray are perpendicular to each other.Let $i$ be the angle of incidence and $r$ be the angle of refraction.From the geometry of the situation,the sum of the angle of incidence,the angle between the reflected and refracted rays,and the angle of refraction is $180^{\circ}$ along the straight line of the interface.Thus,$i + 90^{\circ} + r = 180^{\circ}$.Given $i = 60^{\circ}$,we have $60^{\circ} + 90^{\circ} + r = 180^{\circ}$.$150^{\circ} + r = 180^{\circ}$.$r = 180^{\circ} - 150^{\circ} = 30^{\circ}$.Therefore,the angle of refraction is $30^{\circ}$.

When unpolarized light is incident at an angle of $60^{\circ}$ on a transparent medium from air,the reflected ray is completely polarized. The angle of refraction in the medium is (in $^{\circ}$)

Similar Questions

If the polarizing angle for a medium is $60^\circ$,then the critical angle for that medium is . . . . . .

An unpolarized light beam travelling in air is incident on a medium of refractive index $1.73$ at Brewster's angle. Then

$A$ beam of light strikes a piece of glass at an angle of incidence of $60^{\circ}$ and the reflected beam is completely plane-polarized. The refractive index of glass is

Select the correct statement.

Light,whose electric field vectors are completely removed in the plane of incidence by using a good Polaroid,is incident on the surface of a prism at Brewster's angle. Choose the most suitable option for the phenomenon related to the prism.

Vedclass Test Series

Exam Paper Generator

Online Exam Module