a photon has a wavelength of 624 nm. calculate the energy of the photon in joules

Chemistry · High School · Tue Nov 03 2020

Answered on

Formula:

ΔE=λhc

We have 

λ = 624 nm = 6.24 × 10-⁷ m

h = planck's constant = 6.624 × 10-³⁴ joules

c = speed of light = 3 × 10⁸ m/s

E = (6.624 × 10-³⁴ × 3 × 10⁸ m/s)/6.24 × 10-⁷ 

= 3.185 × 10-¹⁹ joules