jee_main_2025_24_jan_evening - Wave Optics Topics

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QUESTION #1 Young's Double Slit Experiment
Young's double slit interference apparatus is immersed in a liquid of refractive index 1.44. It has slit separation of 1.5 mm. The slits are illuminated by a parallel beam of light whose wavelength in air is 690 nm. The fringe-width on a screen placed behind the plane of slits at a distance of 0.72 m, will be:
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QUESTION #20 Polarization
In a Young's double slit experiment, three polarizers are kept as shown in the figure {{IMG1}}. The transmission axes of P₁ and P₂ are orthogonal to each other. The polarizer P₃ covers both the slits with its transmission axis at 45° to those of P₁ and P₂. An unpolarized light of wavelength λ and intensity I₀ is incident on P₁ and P₂. The intensity at a point after P₃ where the path difference between the light waves from s₁ and s₂ is (λ)/(3), is
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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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