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