Asked by Matt Will
What are the wavelengths of electromagnetic wave in free space that have the following frequencies?
(a) 3.00 10^19 Hz
pm
(b) 7.50 10^9 Hz
cm
(a) 3.00 10^19 Hz
pm
(b) 7.50 10^9 Hz
cm
Answers
Answered by
bbwake
To a wave, wavelength * frequency = velocity.
The speed of light in vacuum = 2.99792458e8 m/s ¡Ö 3*10^8 m/s.
(a) wavelength = velocity/frequency = 3*10^8/(3*10^19) = 10^-11 m.
(b) wavelength = 3*10^8/(7.5*10^9) = 0.04 m.
The speed of light in vacuum = 2.99792458e8 m/s ¡Ö 3*10^8 m/s.
(a) wavelength = velocity/frequency = 3*10^8/(3*10^19) = 10^-11 m.
(b) wavelength = 3*10^8/(7.5*10^9) = 0.04 m.
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