photoreduction
photoeffect
electronlike
light-scattering photometry
number density
photopolarimetric
ceptometer
photoelectromagnetic
charge unit
quantity unit
polarimetry
photoconduction
photooxidation
candela
bolometric magnitude
radiation physics
standard candle
spectrophotometry
densitometry
photoelectrocatalysis
photoelectrocolorimetry
homochromatic
kerma
angstrom star
monochromatic
thermionic current
photothreshold
radiative recombination
cd
electronmicrographic
photoionisation
candle
kiloelectronvolt
lumen-hour
infrared spectrum
radiometry
kilocount
X-ray fluorescence
luminous intensity unit
fluence
antibunching
actinism
Planck charge
pulse counter
candlepower unit
secondary emission