Electromagnetic Waves

Light rays bounce back and forth along the glass fibre

Gamma

Infrared

Radio waves

Microwaves

Visible Light

Ultraviolet

X-Ray

Longest wavelength

Can diffract (bend) around the Earth- good for communication

Used in microwaves

Used for communicating with satellites- easily pass through the watery atmosphere

Infrared cameras can monitor temperature

Used for fibre optic

Light rays bounce back and forth along the glass fibre

Security pens

UV lamps for tanning

Medical tracer

Made by Oscillating Charges

When a receiver absorbs the the radio waves, the energy transfers to the electrons inside the receiver.

This energy causes the electrons to oscillate and generates an alternating current

This AC is the same frequency as the radio waves