Diffraction Gratings: Light of the same wavelength passes through two diffraction gratings. One grating has 4000 lines/cm, and the other one has 6000 lines/cm. Which grating will spread the light through a larger angle in the first-order pattern?
A. the 4000-line grating
B. the 6000-line grating
C. Both gratings spread the light the same.
Answer: B
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