Question

After Elsa builds her ice castle she takes a moment to admire the decoration. On one window there is a small ice structure (that works as a diffraction grating with 750 lines/mm). Light going through that window strikes a wall place 3 meters in front of it. Over what ranges of angles does the visible spectrum extend. Assume the visible spectrum to be between 400 nm and 700 nm, and m=1.

Answer 1

Range of wavelength   to

Distance between slits

Order of the spectrum

For diffraction minima,

Range of angle for the visible spectrum to be found is to   

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