jee_main_2025_07_april_evening - Ray Optics and Optical Instruments Topics

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Sample Questions in this Chapter

QUESTION #9 Spherical Mirrors
A mirror is used to produce an image with magnification of (1)/(4) 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 μ=1.25 is surrounded by another medium of refractive index μ=1.0 as shown in figure. A light ray is incident on the flat face of the block with incident angle θ as shown in figure. What is the maximum value of θ for which light suffers total internal reflection at the top surface of the block? {{IMG1}} [cite: 169, 170, 171]
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Rankbit System
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%)

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