Two sources of light emit X-rays of wavelength 1 nm and vis… | CGP Edu

Physics Optics EM Wave Properties Single Correct MCQ

Published by: CGP EDU Academic Team

Published on: September 12, 2026

Two sources of light emit X-rays of wavelength 1 nm and visible light of wavelength 500nm respectively. Both the sources emit light of the same power 200W. The ratio of the number density of photons of X -rays to the number density of photons of the visible light of the given wavelengths is:

A

B

C

500

D

250

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