Uvc light used in sterilizers, has wavelengths between 100 to 280 nm. if a certain uvc wave has a wavelength of 219 nm, what is the energy of one of its photons in j? once you have the value, take it log (base 10) and enter that with three decimal places as your answer. do not enter units.

-18.042

Explanation:

We can find the energy of a photon (E) using the Planck-Einstein equation.

E = h . ν  =  h . c . λ⁻¹

where,

h is the Planck's constant

ν is the frequency

c is the speed of light

λ is the wavelength

E = (6.63 × 10⁻³⁴ J.s) × (3.00 × 10⁸ m/s) × (219 × 10⁻⁹ m)⁻¹ = 9.08 × 10⁻¹⁹ J

log (9.08 × 10⁻¹⁹) = -18.042

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