Consider Two Diffraction Gratings; One Has 4000 Lines Per Cm

question 76

Multiple Choice

Consider two diffraction gratings; one has 4000 lines per cm and the other one has 6000 lines per cm. Make a statement comparing the dispersion of the two gratings.

• A) The 4000-line grating produces the greater dispersion.
• B) The 6000-line grating produces the greater dispersion.
• C) Both gratings produce the same dispersion, but the orders are sharper for the 4000-line grating.
• D) Both gratings produce the same dispersion, but the orders are sharper for the 6000-line grating.

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