KCET 2026 | Ray Optics Question 3 | Physics

The direction of a ray of light incident on a concave mirror is shown by PQ, while direction in which the ray would travel after reflection is shown by four rays marked as A, B, C and D as shown in the figure. Which of the four rays correctly shows the direction of the reflected ray?

KCET 2026

MCQ (Single Correct Answer)

-0

With reference to the figure shown below, match the following:

List-I		List-II
(a)	Angle of reflection	(i)	$60^\circ$
(b)	Value of $\alpha$	(ii)	$120^\circ$
(c)	Angle of deviation	(iii)	$30^\circ$

a-i, b-ii, c-iii

a-ii, b-i, c-iii

a-iii, b-i, c-ii

a-iii, b-ii, c-i

KCET 2025

MCQ (Single Correct Answer)

-0

A ray of light passes from vaccum into a medium of refractive index $n$. If the angle of incidence is twice the angle of refraction, then the angle of incidence in terms of refractive index is

$\operatorname{Sin}^{-1}\left(\frac{n}{2}\right)$

$2 \operatorname{Cos}^{-1}\left(\frac{n}{2}\right)$

$2 \operatorname{Sin}^{-1}\left(\frac{\mathrm{n}}{2}\right)$

$\operatorname{Cos}^{-1}\left(\frac{\mathrm{n}}{2}\right)$

PREVIOUS NEXT

KCET Subjects

Browse all chapters by subject

Chemistry

Physical Chemistry

Some Basic Concepts of Chemistry Atomic Structure States of Matter Thermodynamics Chemical Equilibrium Ionic Equilibrium Liquid Solution Redox Reactions Surface Chemistry Solid State Electrochemistry Chemical Kinetics Nuclear Chemistry

Inorganic Chemistry

Periodic Table and Periodicity Chemical Bonding and Molecular Structure Metallurgy Hydrogen and It's Compounds s-Block Elements p-Block Elements d and f Block Elements Coordination Compounds Salt Analysis Environmental Chemistry

Organic Chemistry

IUPAC Nomenclatures General Organic Chemistry Isomerism Hydrocarbons Haloalkanes and Haloarenes Alcohol, Phenols and Ethers Aldehyde and Ketone Carboxylic Acids and Its Derivatives Compounds Containing Nitrogen Polymers Biomolecules Chemistry in Everyday Life Practical Organic Chemistry