Which of the following has longest penetration power? UV radiation, X-ray, Microwaves.

Explanation

To determine which type of radiation has the longest penetration power among UV radiation, X-ray, and microwaves, we can analyze the properties of each type of radiation based on their energy and wavelength.

### Step-by-Step Solution:

1. **Understand Penetration Power**:
- Penetration power refers to the ability of radiation to penetrate through materials. Higher energy radiation can penetrate more deeply into substances.

2. **Compare the Energy of Each Radiation**:
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