1.

The ratio of the energy of an X-ray photon of wavelength 1 Å to that of visible light of wavelength 5000 Å  is [EAMCET (Med.) 1995]

A. 1: 5000
B. 5000 : 1
C. 1 :25 \[\times \]106
D. 25 \[\times \]106
Answer» C. 1 :25 \[\times \]106


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