What is the main energy characteristic of UVB rays?

The main energy characteristic of UVB rays is that they have higher energy and intensity than UVA rays. This means they are more effective at causing changes in the skin. UVB rays are primarily responsible for sunburn and play a significant role in the development of skin cancer as well. Their higher energy level also allows them to penetrate the skin more deeply than UVA rays, leading to a greater biological effect. Understanding the difference in energy levels between these two types of ultraviolet radiation is crucial for assessing risks associated with sun exposure and for developing effective sun protection strategies.