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The wavelength of a 1 keV photon is 1.24 x 10^-9 m. What is the frequency of 1 MeV photon?

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The wavelength of a 1 keV photon is 1.24 x 10-9 m. What is the frequency of 1 MeV photon?

(a) 1.24 x 1015

(b) 2.4 x 1020

(c) 1.24 x 1018

(d) 2.4 x 1023

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The correct option is (b) 2.4 x 1020.

Explanation:

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