(a) Rank the following electromagnetic waves from the lowest...

Name: Problem 1, Chapter 22: College Physics
Uploaded: 2021-09-10T15:12:17-08:00
Duration: 3 min 20 s
Channel: Vishal Gupta
Description: (a) Rank the following electromagnetic waves from the lowest to the highest wavelength: (a) microwaves, (b) red light, (c) ultraviolet light, (d) infrared light, and (e) gamma rays. (b) Which wavelength has the highest energy per photon? Which has the lowest?

(a) Rank the following electromagnetic waves from the lowest to the highest wavelength: (a) microwaves, (b) red light, (c) ultraviolet light, (d) infrared light, and (e) gamma rays. (b) Which wavelength has the highest energy per photon? Which has the lowest?

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Key Concepts

Photon Energy Relationship

The energy of a photon is directly related to its frequency and inversely related to its wavelength, described by the equation E = h·c/?, where h is Planck's constant and c is the speed of light. This concept explains why electromagnetic waves with shorter wavelengths, such as gamma rays and ultraviolet light, carry more energy per photon compared to those with longer wavelengths, like microwaves and infrared light.

Wavelength and Frequency Inverse Relationship

Wavelength and frequency are inversely related in electromagnetic waves. This means that as the wavelength decreases, the frequency increases, and vice versa, while the speed of light remains constant. This inverse relationship is essential for understanding how different parts of the electromagnetic spectrum are characterized and how they interact with matter.

Electromagnetic Spectrum

The electromagnetic spectrum encompasses all types of electromagnetic radiation, ranging from gamma rays with extremely short wavelengths to radio waves with very long wavelengths. It is a fundamental concept that organizes different forms of radiation according to their wavelength or frequency, and it is crucial for understanding various phenomena in physics, astronomy, and engineering.

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