Chapter 11, Problem 11A.2E

(a)

Interpretation Introduction

Interpretation:

Wavenumber of the given radiation that is used by a FM radio transmitter at frequency $88.0\text{ MHz}$ has to be determined.

Concept Introduction:

Wavenumber is the total number of wavelengths observed at a unit distance. Equation for wavenumber can be given as,

  $\begin{array}{c}\text{Wavenumber, }\overline{\text{ν}}\text{ =}\frac{\text{1}}{\text{λ}}\text{ = }\frac{\text{ν}}{\text{c}}\\ \\ \text{where, }\\ \text{λ}\text{=}\text{wavelength}\\ \text{ν}=\text{frequency}\\ \text{c = speed of light}\end{array}$

(b)

Interpretation Introduction

Interpretation:

Wavelength of the given radiation that is used by a FM radio transmitter at frequency $88.0\text{ MHz}$ has to be determined.

Concept Introduction:

Wavelength and frequency are inversely proportional to each other and can be given as,

  $\begin{array}{c}\text{ν}\text{=}\frac{\text{c}}{\text{λ}}\\ \text{where, ν}=\text{frequency}\\ \text{λ}=\text{wavelength}\\ \text{c = speed of light}\end{array}$