An electron and a photon each have a wavelength of 1.50 nm. Find (i) their momenta, (ii) the energy of the photon and (iii) kinetic energy of the electron.

Explanation

To solve the problem step by step, we will calculate the momentum of the electron and the photon, the energy of the photon, and the kinetic energy of the electron.

### Step 1: Calculate the momentum of the electron and photon
The momentum \( P \) can be calculated using the de Broglie equation:

\[ P = \frac{h}{\lambda} \]
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