Q1PhysicsUnit 16: Optics
When the distance between the object and the plane mirror increases:
Physics · JEE
Important Questions: Optics for JEE
214+ syllabus-aligned questions available
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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 210+ 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.
JEE Formula Sheet
6+ important formulas for Optics
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
View Optics formula sheet — 6+ JEE formulas
Free sample questions
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Q2PhysicsUnit 16: Optics
The distance between an electric lamp
and a screen is m. A convergent
lens of focal length is placed
between the lamp and the lens such
that a sharp image of the lamp
filaments is formed on the screen.
This question has multiple correct options
Q3PhysicsUnit 16: Optics
The observed wavelength of light
coming from a distant galaxy is found
to be increased by as compared
with that coming from a terrestrial
source. The galaxy is.
Q4PhysicsUnit 16: Optics
For a total internal reflection, which of
the following is correct?
Q5PhysicsUnit 16: Optics
A student focussed the image of a
candle flame on a white screen using a convex lens. He noted down the position of the candle screen and the lens as
under:
Position of candle
Position of convex lens
Position of the screen
What will be the nature of the image formed if he further shifts the candle
towards the lens?
Q6PhysicsUnit 16: Optics
Two coherent monochromatic light
beams of intensities and are
superposed. The maximum and minimum possible intensities in the resulting beam are:
Q7PhysicsUnit 16: Optics
Two independent monochromatic
sodium lamps can not produce interference because
Q8PhysicsUnit 16: Optics
When light waves suffers reflection at the interface from air to glass, the change in phase of reflected waves is
equal to
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Popular questions in Optics
- A person can not see the distant objects clearly (though he can see the nearby object clearly). He is suffering from the…
- An image formed by a plane mirror is:…
- A real image, equal in size to the object, is obtained when the object is placed at the centre of curvature in front of …
- Two coherent monochromatic light beams of intensities \( I \) and \( 4 I \) are superposed. The maximum and minimum poss…
- When an object is placed between optical centre and focus of lens:…
- Astigmatism for a human eye can be removed by using an additional:…
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.
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