What is the separation of the two slits

Reference no: EM13669518

A parallel beam of light from a He-Ne laser, by a wavelength of 656 nm falls on 2 slits and produces an interference pattern in which the third order fringe is 32 mm from the central fringe on a screen 1.6 m away. What is the separation of the two slits? (Hint: for small angles sin θ = tan θ)

Reference no: EM13669518

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