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In Young's double slit experiment the sl...

In Young's double slit experiment the slits are separated by `0.28mm` and the screen is placed at a distance of `1.4m` away from the slits. The distance between the central bright fringe and the fifth dark fringe is measured to be `1.35cm`. Calculate the wavelength of the light used. Also find the fridge width if the screen is moved towards the slits by `0.4m`, for the same experimental set up.

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