Find the maximum magnitude of the linear momentum of a photoelectron emitted when light of wavelength 400 nm falls on a metal having work function 2.5e V.

Explanation

To find the maximum magnitude of the linear momentum of a photoelectron emitted when light of wavelength 400 nm falls on a metal with a work function of 2.5 eV, we can follow these steps:

### Step 1: Calculate the energy of the incident photon
The energy of a photon can be calculated using the formula:
\[ E = \frac{hc}{\lambda} \]
Where:
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