Electromagnetic waves Flashcards
All types of electromagnetic radiation travel at the speed of…
light, 3 x 10⁸ ms‾¹
what type of nature do they have and what does it allow
they have a transverse nature so they can interfere, be diffracted and polarized
what is the equation that they all obey
v= fλ
what do they do with energy
they carry energy from one place to another and can be absorbed by matter to cause heating and other effects
What is a wave
A wave is a combination of travelling magnetic and electric fields that vary in value and are at right angles to each other and the direction of propagation of the wave
Electromagnetic waves are (highest frequency and lowest wavelength)
Gamma rays
X-rays
Ultraviolet rays
Visible light
Infrared red rays
microwaves
TV waves
radio waves
since v=fλ if speed is constant
f and λ would have inverse relationships as f (increasing) λ(decreasing) or as f(decreasing) λ(increasing)
