radiant flux
radiant energy
photosensitivity
radiosensitivity
light wave
intensity level
intensity
strength
actinometry
pulse
radioelectric
radiometry
coefficient of reflection
luminous flux
reflectivity
reflection factor
reflectance
undulation
luminous energy
absorption coefficient
transmittance
speed of light
transmission
absorptance
coefficient of absorption
candela
candle
radioelectricity
standard candle
flash
absorption
cd
solar energy
radio energy
spectroradiometry
radiation
electromagnetic spectrum
nuclear magnetic pulse
electromagnetic radiation
ferrimagnetically
irradiance
electromagnetic wave
nanocandela
lumen-hour
radiant
nonparticulate radiation
light unit
field strength unit
opacity
candlepower unit