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A beam of light consisting of two wavelengths, 650 nm and 520 nm,
is used to obtain interference fringes in a Young’s double-slit
experiment (a) Find the distance of the third bright fringe on the screen from
the central maximum for wavelength 650 nm (b) What is the least distance from the central maximum where the
bright fringes due to both the wavelengths coincide Rationalised 2023-24
Physics
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