Question

At what angle of incident rays should a light beam strike a glass slab of refractive index , such that the reflected and the refracted rays are perpendicular to each other.

Solution

The reflected and refracted ray is mutually perpendicular to each other at the polarising angle.

Therefore, according to Brewster's law , we have
$i_{P} = \tan^{- 1} μ$
where, $μ$ is the refractive index of the medium.

Some More Questions From Wave Optics Chapter

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Wave Optics

At what angle of incident rays should a light beam strike a glass slab of refractive index , such that the reflected and the refracted rays are perpendicular to each other.

Some More Questions From Wave Optics Chapter

What is the shape of the wavefront in each of the following cases:
Light diverging from a point source.

What is the shape of the wavefront in each of the following cases:
Light emerging out of a convex lens when a point source is placed at its focus.

What is the shape of the wavefront in each of the following cases:
The portion of the wavefront of light from a distant star intercepted by the Earth.

Is the speed of light in glass independent of the colour of light? If not, which of the two colours red and violet travels slower in a glass prism?

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For Daily Free Study Material Join wiredfaculty

Wave Optics

At what angle of incident rays should a light beam strike a glass slab of refractive index , such that the reflected and the refracted rays are perpendicular to each other.

Some More Questions From Wave Optics Chapter

What is the shape of the wavefront in each of the following cases: Light diverging from a point source.

What is the shape of the wavefront in each of the following cases: Light emerging out of a convex lens when a point source is placed at its focus.

What is the shape of the wavefront in each of the following cases:The portion of the wavefront of light from a distant star intercepted by the Earth.

Is the speed of light in glass independent of the colour of light? If not, which of the two colours red and violet travels slower in a glass prism?

Mock Test Series

NCERT Sample Papers

Entrance Exams Preparation

What is the shape of the wavefront in each of the following cases:
Light diverging from a point source.

What is the shape of the wavefront in each of the following cases:
Light emerging out of a convex lens when a point source is placed at its focus.

What is the shape of the wavefront in each of the following cases:
The portion of the wavefront of light from a distant star intercepted by the Earth.