Electromagnetic Spectrum Flashcards
Law that governs the absorption
Grotthus Draper Law
the extent of the effect will be determined
by the amount of the energy that is
absorbed by the tissues
Grotthus Draper Law
Law that governs the dosage of radiant
energy. Refers to the intensity of the wave and the
wave varies differently by the square of the
distance between the source of the radiant
energy and the absorbing tissue because of
the divergents of the rays.
Inverse Square Law
o Also governs the dosage and intensity
o States that we need to apply the energy in a
perpendicular direction.
Cosine Law
o Refers also to the dosage
o The intensity and duration of the dose of
radiant energy are inversely proportional
▪ Energy= Intensity x Time
▪ I= E/ T or T= E/I
Bunsen Roscoe Law of Reciprocity
Have the longest wavelengths and and lowest frequencies range from 1000s of meters to .001.
Radio waves
Wavelengths from 10 nm to .001 nm and can be used as treatment for cancer.
X-rays
Carry the most energy and have the shortest wavelength, less than one trillionth of a meter
Gamma Rays
500micrometer- 50 micrometer, also was used as treatment before
Microwaves
A shorter wavelength, from .001 m to 700 nm, and therefore, a higher frequency.It emits heat; a superficial heating agent
Infrared Waves
Wavelengths range from 700 nm (red light) to 30
nm (violet light) with frequencies higher than
infrared waves
Visible Light
Wavelengths range from 400 nm to 100 nm; the
frequency (and therefore the energy) is high enough
with UV rays penetrating living cells and causing them
damage.
Ultraviolet light
