Chapter 7, Problem 7.14QAP

Interpretation Introduction

(a)

Interpretation:

Wavelength of first order and second order diffraction for an incident angle of 45° and reflection of 25° is to be determined.

Concept introduction:

Calculation of wavelength is done by using the following formula:

$m\lambda =d(\sin i+\sin r)$

Here,

m= diffraction order

λ= wavelength

i = angle of incidence

r = angle of reflection

d = spacing

Interpretation Introduction

(b)

Interpretation:

Wavelength of first order and second order diffraction for an incident angle of 45° and reflection of 0° is to be determined.

Concept introduction:

Calculation of wavelength is done by using the following formula:

$m\lambda =d(\sin i+\sin r)$

Here,

m= diffraction order

λ= wavelength

i = angle of incidence

r = angle of reflection

d = spacing