Chapter 9, Problem 9.11QAP

Interpretation Introduction

Interpretation:

A grating monochromator has the wavelength of 500 nm with line width of 0.002 nm. For the first order grating, which is ruled at 2400 grooves/mm Minimum theoretical size of grating needs to be calculated.

Concept introduction:

Minimum theoretical size grating monochromator will be calculated by using the formula of resolving power, which is given as-

$R=\frac{\lambda }{\Delta \lambda }=nN$

Here,

λ =wavelength

Δλ = wavelength difference

n = diffraction order

N = total number of slits