The energy of a photon is given by the expression h*c / L
, where h is the Planck's constant, and c is the speed of light in m/s and L is the
wavelength of the photon in meters.
In your question, you
say the photon wavelength is 426 nm or 426*10^-9.
h is
6.626 * 10^-34 joule s
c is 2.998 * 10^8 m /
s
The energy of the photon is 6.626 * 10^-34*2.998 * 10^8/
426*10^-9
= 4.66* 10^-19
J
Therefore the solution is the energy of the required
photon is 4.66* 10^ -19 J
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