Two sources of light emit X-rays of wavelength 1 nm and visible light of wavelength 500 nm, respectively. Both the sources emit light of the same power 200 W. 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 :
${1 \over {500}}$
500
250
${1 \over {250}}$
Solution
Please login to view the detailed solution steps...
