Physics · JEE

Important Questions: Optics for JEE

25+ syllabus-aligned questions available

Quick answer

The most important Optics questions for JEE cover conceptual traps, standard results, and numerical patterns from Reflection of light, spherical mirrors, mirror formula, Refraction of light at plane and spherical surfaces, thin lens formula and lens maker formula, Total internal reflection and its applications, magnification, power of a lens, combination of thin lenses in contact, Refraction of light through a prism, microscope and astronomical telescope (reflecting and refracting) and their magnifying powers, and more. Goodmarks provides 25+ high-yield MCQs with full solutions.

Focus on what matters most. These important Optics questions cover high-weightage concepts from Reflection of light, spherical mirrors, mirror formula, Refraction of light at plane and spherical surfaces, thin lens formula and lens maker formula, Total internal reflection and its applications, magnification, power of a lens, combination of thin lenses in contact, Refraction of light through a prism, microscope and astronomical telescope (reflecting and refracting) and their magnifying powers, and more — the topics JEE repeats every year.

Subtopics in Optics

Reflection of light, spherical mirrors, mirror formula
Refraction of light at plane and spherical surfaces, thin lens formula and lens maker formula
Total internal reflection and its applications, magnification, power of a lens, combination of thin lenses in contact
Refraction of light through a prism, microscope and astronomical telescope (reflecting and refracting) and their magnifying powers
Wave optics: wavefront and Huygens' Principle, laws of reflection and refraction using Huygens principle
Interference: Young's double-slit experiment and expression for fringe width, coherent sources and sustained interference of light
Diffraction due to a single slit, width of central maximum
Polarization: plane-polarized light, Brewster's law, uses of plane-polarized light and Polaroid

Free sample questions

Attempt 8 free MCQs for Optics. Unlock 17+ more with Pro.

Unlock full bank

Q1PhysicsUnit 16: Optics

Two coherent monochromatic light beams of intensities

I

and

4 I

are superposed. The maximum and minimum possible intensities in the resulting beam are:

Q2PhysicsUnit 16: Optics

Astigmatism for a human eye can be removed by using an additional:

Q3PhysicsUnit 16: Optics

Select the odd one out w.r.t. the type of reflection of incident light (wood, steel, silver, mirror, graphite)

Q4PhysicsUnit 16: Optics

When an object is placed between optical centre and focus of lens:

Q5PhysicsUnit 16: Optics

A needle of length

5 \mathrm{cm},

placed

45 \mathrm{cm}

from a lens form an image on a screen placed

90 \mathrm{cm}

on the other side of the lens. The type of lens and its focal length are :

Q6PhysicsUnit 16: Optics

A magnifying glass is used to read the newspaper. As it is moved far away from the newspaper

Q7PhysicsUnit 16: Optics

A convex mirror of radius of curvature

20 \mathrm{cm}

forms an image which is half the size of the object.How far is the object from the mirror?

Q8PhysicsUnit 16: Optics

Where should the object be placed to get the virtual image in case of convex lens?

Want unlimited Optics practice?

Pro unlocks the full question bank, topic filters, and attempt history.

Get started free View Pro plans

Frequently asked questions

What makes a Optics question "important" for JEE?

Important questions test core concepts that appear frequently across JEE Main and Advanced papers — definitions, standard formulas, and classic problem types.

Which subtopics in Optics are high-weightage?

Key areas include Reflection of light, spherical mirrors, mirror formula, Refraction of light at plane and spherical surfaces, thin lens formula and lens maker formula, Total internal reflection and its applications, magnification, power of a lens, combination of thin lenses in contact, Refraction of light through a prism, microscope and astronomical telescope (reflecting and refracting) and their magnifying powers, and more. Prioritise these before moving to edge cases.

How many important questions should I revise?

Revise 30–50 important MCQs per unit in the last month before JEE. Focus on questions you got wrong at least once.

Can I practise only important questions on Goodmarks?

Pro users can filter by unit and subtopic to target high-yield areas. Free users can attempt sample questions on this page.