Question

The particle nature of light was first proposed by Albert
Einstein, who suggested that light could be described as a stream
of particles called photons. A photon of wavelength *λ* has
an energy (*E*) given by the following equation:
*E*=*h**c*/*λ* , where *E* is
the energy of the photon in J, *h* is Planck's constant
(6.626×10−34J⋅s), and *c* is the speed of light
(3.00×108m/s).

Calculate the energy of 1mol of photons with a wavelength of 602nm. (answer in Joules please)

Answer #1

Here the wavelength of photon .

As we know

c= velocity of light

h= plank's constant

Now apply

Hence the energy for 1 mole of photon is written as

Answer.

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