electromagnetic waves Flashcards
what is an electromagnetic wave
transverse progressive waves, consisting of magnetic and electric fields which oscillate at right angles to each other.
what will an oscillating charged particle generate
an electric field perpendicular to the magnetic field.
an electromagnetic wave
an electric field perpendicular to the magnetic field.
in the direction of wave travel.
in an electromagnetic wave the fields vary in
direction
strength
size
magnitude
amplitude
in an electromagnetic wave the electric field is generally…
bigger than magnetic
In an electromagnetic wave, the amplitude of the wave is
maximum field strength of the electric field.
what is the relationship between wavelength and frequency for an electromagnetic wave in a vacuum
inversley proportional
what is the em spectrum low frequency - high
radio
microwaves
infrared
visible light
ultraviolet
x-rays
gamma rays
what colour has the shortest wavlength
violet
what colour has the longest wavlength
red
