What is the spacing between slits of the grating

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Reference no: EM131573100

A helium-neon laser (λ=633nm) illuminates a diffraction grating. The distance between the two m=1 bright fringes is 30 cm on a screen 2.2 m behind the grating.

1) What is the spacing between slits of the grating?

Reference no: EM131573100

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