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Home Q & A Board Science-Related Homework Help Physics
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BBAgent! BBAgent!
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9 years ago
Part A

What is the wavelength of a radio photon from an "AM" radio station that broadcasts at 880 kilohertz?

λ =       m

Part B

What is its energy?

E =      J
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wrote...
#1
9 years ago
v = \({\lambda}\) f

wavelength = wave speed / frequency

so you know that it's a radio photon (light particle) so the speed of light (wave speed) is 3 x 10^8

and plug in 880 x10^3 (multiply by 1000 to account for the KILOhertz) for the frequency and you'll have your answer!

part B:

E=hf

where h is planck's constant and f is frequency

 6.6X10^-34 Js.  is planck's constant and again plug in 880 x 10^3 and you;ll have the answer!
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