Adouble-slit experiment is performed with light of wavelength 600 nm. the bright interference fringes are spaced 1.8 mm apart on the viewing screen. what will the fringe spacing be if the light is changed to a wavelength of 400nm?

Fringe spacing if light is changed then

Explanation:

Given data is:

For Double slit experiment distance b/w two bright fringes is given as:

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