Ultraviolet light is incident on two photosensitive materials having work function `W_(1)` and `W_(2) (W_(1) gt W_(2))`. In which case will the kintic enrgy of the emitted electrons be greater? Why?

Explanation

To solve the problem, we will use the photoelectric effect concept and Einstein's photoelectric equation. The question involves two photosensitive materials with different work functions and asks which material will emit electrons with greater kinetic energy when ultraviolet light is incident on them.

### Step-by-Step Solution:

1. **Understand the Work Function**:
The work function (W) is the minimum energy required to remove an electron from the surface of a material. In this case, we have two materials with work functions W1 and W2, where W1 > W2.

2. **Use Einstein's Photoelectric Equation**:
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