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JEE Physics: Waves (+15.5%) | Electrostatics: Concentric Shells (-29.7%) | Modern Physics: Photoelectric Clones (+34.2%) | Mathematics: Definite Integrals (+18.1%) | Chemistry: Coordination Splitting (-11.4%) | JEE Physics: Waves (+15.5%) | Electrostatics: Concentric Shells (-29.7%) | Modern Physics: Photoelectric Clones (+34.2%) | Mathematics: Definite Integrals (+18.1%) | Chemistry: Coordination Splitting (-11.4%)

jee_main_2025_02_april_evening - Ray Optics and Optical Instruments Topics

Master these core formulas and structures to solve almost any past paper question.

Sample Questions in this Chapter

QUESTION #0 Spherical Mirrors and Magnification
Two identical objects are placed in front of convex mirror and concave mirror having same radii of curvature of 12 \, textcm , at the same distance of 18 \, textcm from the respective mirrors. The ratio of sizes of the images formed by convex mirror and by concave mirror is:
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QUESTION #17 Lens Maker's Formula
A bi-convex lens has radius of curvature of both the surfaces same as 1/6 cm. If this lens is required to be replaced by another convex lens having different radii of curvatures on both sides ( R_1 neq R_2 ), without any change in lens power then possible combination of R_1 and R_2 is:
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QUESTION #23 Prism Formula and Minimum Deviation
A ray of light suffers minimum deviation when incident on a prism having angle of the prism equal to 60^circ . The refractive index of the prism material is sqrt2 . The angle of incidence (in degrees) is ______.
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YOUR FIRST PREP STEP STARTS HERE

We Map Every Repeating Question in Competitive Exams.

Say goodbye to generic mock test fatigue. RankBit uses smart analysis to group past exam questions into their foundational Repeating Question Types. Find chapter weightage, track repeating questions, and score higher with targeted practice.

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Choose an exam track below to find formulas per chapter and patterns.

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PATH A — FULL LENGTH PRACTICE

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PATH B — TARGETED PRACTICE

Topic-wise Practice Hub

Practice past-year questions one chapter at a time. Pick an exam → subject → chapter and get every PYQ for that topic — pulled together from all past papers — with the chapter's key formulas alongside.

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