What is the frequency of a photon with the energy of 4.56 x 10 -19 J

Answer 1

E = hν

E = energy = 4.56x10^-19 J

h = Plank's constant = 6.626x10^-34 J-sec

ν = frequency = ?

Solving for ν we have...

ν = E/h = 4.56x10^-19 J / 6.626x10^-34 Jsec^-1

ν = 6.88x10¹⁴ s^-1