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elena-14-01-66 [18.8K]
3 years ago
10

Electromagnetic radiation with a wavelength of 525 nm appears as green light to the human eye. The energy of one photon of this

light is____________.
A) 1.04*10^-22

B)1.4*10^-31

C) 2.64*10^18

D) 3.79*10^-28

E) 3.79*10^-19
Chemistry
1 answer:
Sedbober [7]3 years ago
3 0

<u>Answer:</u> The energy of one photon of the given light is 3.79\times 10^{-19}J

<u>Explanation:</u>

To calculate the energy of one photon, we use Planck's equation, which is:

E=\frac{hc}{\lambda}

where,

\lambda = wavelength of light = 525nm=5.25\times 10^{-7}m        (Conversion factor:  1m=10^9nm  )

h = Planck's constant = 6.625\times 10^{-34}J.s

c = speed of light = 3\times 10^8m/s

Putting values in above equation, we get:

E=\frac{6.625\times 10^{-34}J.s\times 3\times 10^8m/s}{5.25\times 10^{-7}mm}\\\\E=3.79\times 10^{-19}J

Hence, the energy of one photon of the given light is 3.79\times 10^{-19}J

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