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05-08-2015
Physics

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What is the frequency of X-rays of 10 nm wavelength? 6 x 1016 Hz 3 x 1016 Hz 3.00 Hz 6 x 108 Hz

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06-08-2015

The frequency of any wave is (wave speed) / (wavelength) .

The speed of light is 3 x 10⁸ m/s.
If the wavelength is 10 nm (10⁻⁸ m) , then the frequency is

(3 x 10⁸) / (10⁻⁸) = 3 x 10¹⁶ Hz

That's 30 million gigahertz !

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