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