Question

A certain shade of blue has a frequency of 7.33 × 10^14 Hz. What is the energy of exactly one photon of this light?

Answer 1

486 zJ

Step-by-step explanation:

The relation between the frequency (f) of a photon and its energy (E) is

E = hf

h = 6.626 × 10⁻³⁴ J·s

f = 7.33 × 10¹⁴ s⁻¹

E = 6.626 × 10⁻³⁴ × 7.33 × 10¹⁴

E = 4.86 × 10⁻¹⁹ J = 486 × 10⁻²¹ J = 486 zJ