Light Basics
The length between two crests in a wave
Wavelength
Scientist who explained light as particles
Einstein
Study of the properties of light
Spectroscopy
Telescope that uses a lens to focus light
Refracting telescope
The Sun’s visible surface
Photosphere
The number of waves per unit time
Frequency
Discrete particles of light
Photon
Discrete bright lines emitted by an element
Emission line spectrum
Telescope that uses mirrors to focus light
Reflecting
Thin red layer above the photosphere
Chromosphere
All possible wavelengths of light
Electromagnetic spectrum
What is the name of this relation: E=hv?
Planck-Einstein Relation
Dark lines where wavelengths are absorbed
Absorption line spectrum
Cameras that capture almost all photons
CCD Camera
Outermost layer of the Sun’s atmosphere
Corona
Energy transmitted as waves through space
Electromagnetic radiation
Effect where light ejects electrons from a surface
Photoelectric Effect
Frequency increases when source moves toward observer
Doppler effect
Larger telescopes produce a larger this
Resolution
Process that combines hydrogen nuclei to power the Sun
Nuclear fusion
Amount of light per unit area
Luminosity
The Planck-Einstein relation states that these two values are proportional
Energy, frequency
Shift when a star moves away from Earth
Redshift
Radio telescopes are shaped like this
Paraboloid
Bright Texas-sized regions caused by convection
Granules