Intro To Light Flashcards
Top of a wave
Crest
Bottom of a wave
Trough
Distance between crests on a wave
Wavelength
James clerk maxwell
Showed mathematically that light must be a combination of electric and magnetic fields
Light with a high energy has a ___ frequency and a ___ wavelength
High, short
Rank the energy from highest to lowest
Gamma rays, X-rays, uv, ir, radio
What speed to light forms move
All the same speed
What type of light has the most energy
Blue
Light can behave as a
Particle or wave
Light waves consist of which fields
Magnetic, electric
The photoelectric effect
Bellow a certain frequency no matter how many protons you send at a metal no electrons will be ejected, higher frequency photons have higher energies therefore when these higher energy photons hit electrons in metals the electrons are ejected with higher velocities
What type of electromagnetic radiation has the highest frequency
Gamma rays
Which has the longest wavelength
Radio
What wavelength does earth radiate most strongly at
Infrared
