A Light Beam Incident on a Diffraction Grating Consists of Waves

question 9

Multiple Choice

A light beam incident on a diffraction grating consists of waves with two different wavelengths.The separation of the two first order lines is great if:

• A)the dispersion is great
• B)the resolution is great
• C)the dispersion is small
• D)the resolution is small
• E)none of the above (line separation does not depend on either dispersion or resolution)

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