Question

The wave number of the electron is 3 1/m. Then what will the energy of the electron​

Answer 1

Answer:

$6.162 \times {10}^{ - 24}$

J

Explanation:

We have to use the law of Plank to solve this math.

We know that, wave number= 1/wavelength

Given,

Wave number=31 m^(-1)

So, wavelength = 1/31 m

That's why, Energy= hc/wavelength

h= 6.626*10^(-34) J s

c= 3*10^(8) m/s

So, Energy= 6.162*10^(-24) J