Question

What is the wavelength of a photon that has 4.42 x 10^8 of energy?​

Answer 1

λ = 4.5×10⁻³⁴ m

Step-by-step explanation:

Given data:

Energy of photon = 4.42×10⁸ J

Wavelength of photon = ?

Solution:

Formula:

E = hc/λ

speed of light = c = 3×10⁸ m/s

planck's constant = h = 6.63×10⁻³⁴ Js

Now we will put the values in formula.

4.42×10⁸ J = 6.63×10⁻³⁴ Js × 3×10⁸ m/s / λ

λ = 6.63×10⁻³⁴ Js × 3×10⁸ m/s / 4.42×10⁸ J

λ = 19.89×10⁻²⁶ Jm / 4.42×10⁸ J

λ = 4.5×10⁻³⁴ m