Download EM Spectrum Math Problem Set

EM Spectrum Math Problem Set
1.
Electromagnetic radiation was detected with a frequency of 3 x 1010 Hz. What is the wavelength of this
wave? What type of wave might this be?
2.
Electromagnetic radiation was detected with a frequency of 3 x 1018 Hz. What is the wavelength of this
wave? What type of wave might this be?
3.
What is the wavelength of the carrier wave received at FM station 100 megahertz on your radio dial
(1 megahertz = 1x106 Hz)?
4.
When you look at a distant star or planet, you are looking back in time. How far back in time are you
looking when you observe Pluto through the telescope from a distance of 5.91 x 10 12 m?
5.
If a person could travel at the speed of light, it would still take 4.3 years to reach the nearest star, Proxima
Centauri. How far away in meters, is Proxima Centauri? (need to convert years to seconds)
6.
When you go out in the sun, it is the ultraviolet light that gives you a tan. The pigment in your skin called
melanin is activated by the enzyme tyrosinase, which has been stimulated by ultraviolet light. What is the
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wavelength of this light if it has a frequency of 7.89 x 10 Hz?