# (a) Interpretation: The focal length value of a monochromator is 1.6 cm. This monochromator also has collimating mirror whose diameter value is 3.5 cm and this dispersion device is grating with the value of 1500 line/mm. Resolving power of this monochromatic device is to be determined for first order grating, at the condition that the illumination of the collimated beam occurs at 3.2 cm of the grating. Concept introduction: Resolving power of monochromatic device is calculated by using the following formula: R = λ Δ λ = n N Distance between slit and the no. of lines also given as: d = 1 N

### Principles of Instrumental Analysis

7th Edition
Douglas A. Skoog + 2 others
Publisher: Cengage Learning
ISBN: 9781305577213

### Principles of Instrumental Analysis

7th Edition
Douglas A. Skoog + 2 others
Publisher: Cengage Learning
ISBN: 9781305577213

#### Solutions

Chapter 7, Problem 7.18QAP
Interpretation Introduction

## (a)Interpretation:The focal length value of a monochromator is 1.6 cm. This monochromator also has collimating mirror whose diameter value is 3.5 cm and this dispersion device is grating with the value of 1500 line/mm. Resolving power of this monochromatic device is to be determined for first order grating, at the condition that the illumination of the collimated beam occurs at 3.2 cm of the grating.Concept introduction:Resolving power of monochromatic device is calculated by using the following formula:R=λΔλ=nNDistance between slit and the no. of lines also given as:d=1N

Interpretation Introduction

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