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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_07_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 #9 Spherical Mirrors
A mirror is used to produce an image with magnification of frac14 If the distance between object and its image is 40 cm, then the focal length of the mirror is [cite: 113, 114, 116]
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QUESTION #14 Refractive Index
Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : Refractive index of glass is higher than that of air. [cite: 130] Reason (R): Optical density of a medium is directly proportionate to its mass density which results in a proportionate refractive index. [cite: 131] In the light of the above statements, choose the most appropriate answer from the options given below: [cite: 132]
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QUESTION #20 Total Internal Reflection
A transparent block A having refractive index mu=1.25 is surrounded by another medium of refractive index mu=1.0 as shown in figure. A light ray is incident on the flat face of the block with incident angle theta as shown in figure. What is the maximum value of theta for which light suffers total internal reflection at the top surface of the block? {{IMG1}} [cite: 169, 170, 171]
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