A beam of light has three wavelengths `4000 Å, 5000 Å, 6000Å` with a total intensity `3 xx 10^(-3) W//m^(2)` equally distributed amongst the three wavelenth. The beam falls normally on an area `2 cm^(2)` of clean metallic surface of work function `2.4 eV`. Calculate photo current. (Assume each energetically suitable photon emits one electron)

Explanation

To solve the problem step by step, we will follow these calculations:

### Step 1: Calculate the energy of each photon for the given wavelengths.

The energy of a photon is given by the formula:
\[ E = \frac{hc}{\lambda} \]
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