The Resolving Power of a Diffraction Grating Is Defined by R

question 53

Multiple Choice

The resolving power of a diffraction grating is defined by R = $\lambda$ / $\Delta$$\lambda$ . Here $\lambda$ and $\lambda$ + $\Delta$$\lambda$ are:

• A) any two wavelengths
• B) any two wavelengths that are nearly the same
• C) two wavelengths for which lines of the same order are separated by \(\pi\) radians
• D) two wavelengths for which lines of the same order are separated by 2 \(\pi\) radians
• E) two wavelengths for which lines of the same order are separated by half the width of a maximum

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