Question

laser light of wavelength 640 nm on a incident on a pair of slits produces an interference pattern in which the bright fringes are separated by 7.2 millimetre calculate the wavelength of another source of light which produces interference fringes separated by 8.1 using same arrangement also find the minimum value of order n of bright fringes of shorter wavelength which coincides with that of the longer wavelength​

Answer 1

Answer:

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Explanation:

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