Question

Ultraviolet radiation is part of the electromagnetic spectrum that has wavelengths in the range of 200 nm to 400 nm. Given that the speed of all forms of electromagnetic radiation is 3.0 × 10^8 m/s, calculate the frequency range of ultraviolet radiation.
v = λf
so, the frequency range is
c/(400*10^-9) to c/(200*10^9)

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