Electromagnetic Energy

Photons

Smallest quantity of any type of electromagnetic energy

Quantum

A photon may be pictured as a small bundle of energy, sometimes called...

James Clerk Maxwell

formulated the Electromagnetic Wave Theory

Can travel through empty space

Travels with the speed of light

Travels in a wave-like fashion

Properties of electromagnetic radiation

3 x 10^8 m/s or 186000 miles per second

What is the velocity of all electromagnetic radiation?

Wavelength

The distance from one crest to another, from one valley to another, or from any point on the sine wave to the next corresponding point

Frequency

Is the number of wavelength that pass a point of observation per second

V = λf (velocity = wavelength x frequency

Wave equation

C = λf (speed of light = wavelength x frequency)

Electromagnetic wave equation

102 to 1024 Hz

The frequency range of electromagnetic energy extends from approximately...

10^7 to 10^-16 m

The wavelength of electromagnetic energy are approximately...

Visible light

What your eye detects

4000 to 8000 angstroms

Visible light has a wavelength of..

1 Angstrom = 1 x 10^-10 m

1 angstrom to m

1 nm =1.0 x 10^-9 m = 10 angstrom

1 nm to m to angstrom

Gamma ray, x-ray

Ionizing radiation

Photons interact with matter most easily when matter is approximately the same size as the photon wavelength

Wave-particle duality (photon interaction with matter)

All radiation with wavelengths longer than that of x-radiation interacts primarily as a wave phenomenon

Wave particle duality (wavelength)

Wave phenomenon

All radiation with wavelength longer than those of x-radiation interacts primarily as...

Quantum Theory

X-rays are created with the speed of light (c), and they exist with the velocity (c) or they do not exist at all - Max Planck

E =hf (E =photon energy, h= Planck's constant, f = photon frequency)

Plancks quantum equation

4.15 x 10^-15 ev or 6.63 x 10^-34 Js

Plancks constant (h)

E =mc^2 (E= energy in joules, m = mass in kg, c = velocity of light in m/s)

Theory of relativity

1 Joule = 6.24 x 10^18 eV

1 joule to ev