radiometry
radiant energy
actinometer
bolometer
radiometer
spectroradiometry
luminous intensity unit
radiant flux
candlepower unit
actinometry
solar energy
electrochemiluminometric
electrochemiluminescent
photo-
standard candle
cd
candle
candela
thermionic
infrared lamp
band
spectrophotometer
field strength unit
photoelectrolysis
heat lamp
radiosensitivity
photosensitivity
monochromatic
reflectance
coefficient of reflection
reflectivity
homochromatic
maser
reflection factor
absorptance
absorption coefficient
photometry
elves
coefficient of absorption
luminous energy
emission spectrum
light unit
radiation pyrometer
light spectrum
spectrophotometry
electromagnetometry
ergmeter
photodynamic
nuclear magnetic pulse
ionization chamber
ionization tube
J. C. Maxwell
James Clerk Maxwell
Maxwell
light wave
violle
pulse
electromagnetic pulse
wavemeter
infrared ray
light intensity
candlepower
visible light
atomic emission spectroscopy
spark counter
graser
microwave
magnetogyric
spectral line
carcel
wattmeter
ardency
spark chamber
midinfrared
infrared
photometer
gyrosynchrotron
sferic
energetical
electric energy
infrared frequency
halogen stove
photocathode
photomagnetism
photoconductivity
sunphotometry
photoconduction
irradiance
infrared spectrum
lumen second
electromagnetics
photostimulated
electromagnetism