05 Ray Optics Class 12 PYQ | Refraction PYQs 2025 |Last 10 Years Questions 2026

Описание: 05 Ray Optics Class 12 PYQ | Refraction PYQs 2025 | Last 10 Years Questions 2026 #rayopticsphysics

Ray Optics Physics ka sabse bada aur sabse zyada marks dene wala chapter hai. Is session mein humne cover kiya hai Lens Maker's Formula, Prism, Total Internal Reflection (TIR), aur Optical Instruments (Microscope & Telescope) ke 5-marks wale Derivations aur Tricky Numericals.

📝 Is Video mein aap sikhenge:

Reflection & Refraction: Mirror & Lens Formula application.

Total Internal Reflection (TIR) & Optical Fibers.

Derivations: Lens Maker’s Formula & Prism Formula.

Optical Instruments: Compound Microscope & Astronomical Telescope (Ray diagrams & Magnification).

Last 10 Years ke most repeated Board Questions.
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A rectangular glass slab ABCD ( refractive index 1.5 ) is surrounded by a transparent liquid ( refractive index 1.25 ) as shown in the figure . A ray of light is incident on face AB at an angle i such that it is refracted out grazing the face AD . Find the value of angle I. [ Class 12 Physics CBSE board 2025 Paper Set 1 Code 55/5/1 ]
A tank is filled with a liquid of refractive index 2 , up to a height of 30 cm. A tiny bulb is glowing at
the bottom of the tank. Calculate the diameter of an opaque disc floating symmetrically on the liquid surface that can cut off completely the light from the bulb that comes out of the liquid surface.
When a parallel beam of light enters water surface obliquely at some angle, when is the effect on
the width of the beam ?









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