jee_main_2025_07_april_morning - 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 #8 Refraction at Spherical Surfaces and by Lenses
A lens having refractive index 1.6 has focal length of 12mathrmcm , when it is in air. Find the focal length of the lens when it is placed in water. (Take refractive index of water as 1.28)
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QUESTION #10 Refraction at Spherical Surfaces and by Lenses
Two thin convex lenses of focal lengths 30~mathrmcm and 10~mathrmcm are placed coaxially, 10~mathrmcm apart. The power of this combination is :
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QUESTION #0 Refraction at Plane Surfaces
A container contains a liquid with refractive index of 1.2 up to a height of 60~mathrmcm and another liquid having refractive index 1.6 is added to height H above first liquid. If viewed from above, the apparent shift in the position of bottom of container is 40~mathrmcm . The value of H is ______mathrmcm . (Consider liquids are immisible)
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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%)
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