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In YDSE, the intensity of central bright fringe is . What will be the intensity at path difference?
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Important Questions on Wave Optics
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Unpolarised light is incident from air on a plane surface of a material of refractive index . At a particular angle of incidence , it is found that the reflected and refracted rays are perpendicular to each other. Which of the following options is correct for this situation?
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In Young's double slit experiment the separation between the slits is the wavelength $\lambda$ of the light used is and distance between the screen and slits is It is found that the angular width of the fringes is $0.20^{\circ} .$ To increase the fringe angular width to $0.21^{\circ}$ (with same $\lambda$ and $D$ ) the separation between the slits needs to be changed to
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Unpolarized light of intensity is passing through two polaroids kept at an angle with each other. What will be the final intensity?
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A single slit is of width 0.5 mm. Distance of screen from slit is 1 m. Second maxima in diffraction pattern is at distance 2 mm from centre. What is wavelength of light ?
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In YDSE wavelength of light used is 600 nm. At a point intensity is 50% of maximum value. What is path difference at that point :-
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A unpolarised light is passing through three pohroids as shown final intensity will be :-
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In a single slit diffraction, slit width is and distance of first minima from central position is . If screen distance is , then wave length of light is :
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In , the distance between slits is , the distance between slit and screen is and wavelength of monochromatic light incident on slit is . Find the phase difference between the waves at a point from midpoint?
