# Answer on Physical Chemistry Question for Sandeepan dhar chowdhury

Question #3092

Q. Find energy of each of the photons which:-

(i) correspond to light of frequency 3 x 10^15 Hz.

(ii) Have wavelength of 0.50A

(i) correspond to light of frequency 3 x 10^15 Hz.

(ii) Have wavelength of 0.50A

Expert's answer

The energy of photon can be written as

E = hν/c = hc/ λ, where h -is a Planck constant, c - the speed of the light, ν - the frequency, λ - the wavelength.

(i) E = 6.62 x 10

(ii) E = 6.62 x 10

E = hν/c = hc/ λ, where h -is a Planck constant, c - the speed of the light, ν - the frequency, λ - the wavelength.

(i) E = 6.62 x 10

^{-34}* 3 x 10^{15}/ 3 x 10^{8}= 6.62 x 10^{-27}J.(ii) E = 6.62 x 10

^{-34}*3 x 10^{8}/0.5 x 10^{-10}= 3.972 x 10^{-15}J.Need a fast expert's response?

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