So basically the wavelength times the frequency of an electromagnetic wave equals the speed of light.
FYI,
λ
is the Greek letter lambda , and
ν
is the Greek letter nu (it is not the same as a v).
Answer:
Type of Radiation Frequency Range (Hz) Wavelength Range
gamma-rays 1020 - 1024 < 10-12 m
x-rays 1017 - 1020 1 nm - 1 pm
ultraviolet 1015 - 1017 400 nm - 1 nm
visible 4 - 7.5*1014 750 nm - 400 nm
near-infrared 1*1014 - 4*1014 2.5 μm - 750 nm
infrared 1013 - 1014 25 μm - 2.5 μm
microwaves 3*1011 - 1013 1 mm - 25 μm
radio waves < 3*1011 > 1 mm
(Ultraviolet I believe, not sure)
