Physics

Problem

A diffraction grating with

600\,\text{lines/mm}

produces first-order maxima for three narrow spectral lines at angles of

12^{\circ}

15^{\circ}

, and

18^{\circ}

to the central maximum. Assuming the lines lie within the visible spectrum, which ranking of their perceived colors from lowest to highest frequency is most consistent with these data? a) Blue

\to

Green

\to

Red b) Green

\to

Red

\to

Blue c) Red

\to

Green

\to

Blue d) Red

\to

Blue

\to

Green

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