A ray of light falls on a transparent glass slab with refractive index (relative to air) of ${\rm{1}}{\rm{.62}}$. The angle of incidence for which the reflected and refracted rays are mutually perpendicular is

${\sin ^{ - 1}}\,\,\left( {1.62} \right)$

${\cos ^{ - 1}}\,\,\left( {1.62} \right)$

JEE PHYSICS MCQ: WAVE OPTICS

1 Medium

1 of 1

Application +4 | -1

A ray of light falls on a transparent glass slab with refractive index (relative to air) of

\mathrm{1}\mathrm{.62}

. The angle of incidence for which the reflected and refracted rays are mutually perpendicular is

View answer and explanation

Correct option: A

{\tan ^{ - 1}}\,\,\left( {1.62} \right)

Option A (

{\tan ^{ - 1}}\,\,\left( {1.62} \right)

) is correct because it is derived from the relationship between refractive index and the angle of incidence when reflected and refracted rays are perpendicular.

More Questions from WAVE OPTICS

Practice All Chapter MCQs →

Which of the following properties of electromagnetic waves does not support particle nature of radiation (electromagnetic wave)? Spherical wavefronts, emanating from a point source, strike a plane reflecting surface. What will happen to these wave fronts, immediately after reflection? An astronomical telescope is able to resolve two stars at an angular separation of

10^{-3}

degree. If wavelength of light used is

500 {~nm}

, then the diameter of the objective of the telescope is An interference pattern was made by using red light. If the red light changes with blue light, the fringes will become H-polaroid is prepared by Specific rotation of sugar solution is

0.01\;SI

units.

200\;kg{m^{ - 3}}

of impure sugar solution is taken in a polarimeter tube of length

0.25\;m

and an optical rotation of

0.4\;rad

is observed. The percentage of purity of sugar is the sample is