jee_main_2026_21_jan_evening - Wave Optics Topics

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QUESTION #34 Young's Double Slit Experiment
Given below are two statements: Statement I : In a Young's double slit experiment, the angular separation of fringes will increase as the screen is moved away from the plane of the slits Statement II : In a Young's double slit experiment, the angular separation of fringes will increase when monochromatic source is replaced by another monochromatic source of higher wavelength In the light of the above statements, choose the correct answer from the options given below:
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QUESTION #49 YDSE - Fringe Shift
In a Young's double slit experiment set up, the two slits are kept 0.4 text mm apart and screen is placed at 1 text m from slits. If a thin transparent sheet of thickness 20 \,mutextm is introduced in front of one of the slits then centre bring fringe shifts by 20 text mm on the screen. The refractive index of transparent sheet is given by fracalpha10, where alpha is ________.
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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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