Chapter 7, Problem 7.9P

Interpretation Introduction

Interpretation:

The energy of one photon of a radio wave with frequency $3.8\times {10}^{10}\text{ Hz}$ is to be determined.

Concept introduction:

Electromagnetic waves are radiations that are formed by oscillating electric and magnetic fields. The electric and magnetic field components of an electromagnetic wave are perpendicular to each other.

Energy is proportional to the frequency and is expressed by the Plank-Einstein equation as follows:

$E=h\nu$ (1)

Here,

$E$ is the energy.

$h$ is the Plank’s constant.

$\nu$ is the frequency

The conversion factor to convert frequency from $\text{Hz}$ to ${\text{s}}^{-1}$ is,

$1\text{ Hz}=1{\text{ s}}^{-1}$