Resolving Power of Grating

R = \frac{\lambda}{\Delta\lambda} = mN

The ability of a grating to distinguish between two closely spaced wavelengths.

Variables

R

Resolving power

unitless

\lambda

Wavelength

m

\Delta\lambda

Minimum resolvable wavelength difference

m

m

Order number

unitless

N

Number of slits

unitless

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