Discover the resolving power of a grating needed to separate

Reference no: EM13664499

a) Discover the resolving power of a grating needed to separate the sodium-D spectral lines, which are at 588.9 nm and 589.1 nm.

b) How many lines should the grating have to achieve this resolution in third order? (This is a very low resolution in terms of present-day spectroscopic standards)

Reference no: EM13664499

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