n a certain material that has index of refraction of 2.25, and electromagnetic wave has speed of 7.5 x 107 m/s, and a wavelength of 6.4 x 10-9 m. Calculate the frequency of the EM wave when it is propagating in vacuum.
Frequency of wave is not change with medium,it is always same in each medium and vacuum.
We know f= speed / wavelength
Speed =7.5× 10^7 m/s
Wavelength = 6.4× 10^(-9) = 6.4nm
So frequency =1.172× 10^(16) Hz
n a certain material that has index of refraction of 2.25, and electromagnetic wave has speed...
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