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Light of wavelength is incident on a thin glass plate of refractive index such that the angle of refraction on the plate is Calculate the smallest thickness of plate which will make it appear dark by reflection.
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Important Questions on Wave Optics
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Light is incident on a glass plate such that the angle of refraction is . A dark band is observed corresponding to the wavelength of If the thickness of glass plate is , calculate the order of the interference band.
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The direction of the second maximum in the Fraunhofer diffraction pattern at a single slit is given by ( is the width of the slit),
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The angular width of central maximum of a diffraction pattern of a single slit does not depend upon,
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In the diffraction pattern of a single slit aperture, the width of the central fringe compared to the widths of the other fringes is,
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The central fringe obtained in diffraction pattern due to a single slit,
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In a single-slit diffraction pattern, if the light source used is of less wavelength than the previous one, the width of the central fringe would be,
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In the laboratory, diffraction of light by a single-slit is being observed. If the slit is made slightly narrow, then diffraction pattern will be,
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Find the half angular width of the central bright maximum in the Fraunhofer diffraction pattern of a slit of width when the slit is illuminated by monochromatic light of wavelength .
