Electromagnetic Spectrum Flashcards
What is the order of the electro magnetic spectrum?
Radio waves, Microwaves, Infrared, Visible light, Ultra Violet, X-rays, Gamma rays.
What is the length of radio waves?
> 0.1m
What is the length of microwaves?
0.1m - 1mm
What is the length of infrared?
1mm - 700nm
What is the length of visible light?
700nm - 400nm
What is the length of ultra violet?
400nm - 1nm
What is the length of x-rays?
<1nm
What is the length of gamma rays?
<1nm
What are electromagnetic waves?
Disturbance in the electric and magnetic fields.
When are electromagnetic waves emitted?
When a charged particle loses energy. This happens when a fast moving electron changes direction, or an electron moves to a lower energy level.
What happens to wavelength as you go down the electromagnetic spectrum?
It gets shorter.
What happens to frequency as you go down the electromagnetic spectrum?
It gets higher.
What happens to the number of photons as you go down the electromagnetic spectrum?
It gets higher.
