Class 12 NEET Physics Dual Nature of Matter and Radiation

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Question : 99 of 107

Marks: +1, -0

The wavelength of a 1 keV photon 1.24×10−9 m. What is the frequency1 MeV photon?

(1991)

1.24×1015
2.4×1020
1.24×1018
2.4×1023

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