Which type of UV ray is referred to as the burning ray?

UVB rays are commonly known as the burning rays due to their higher energy levels, which penetrate the skin's outer layers. These rays are primarily responsible for causing sunburns and contribute to the development of skin cancer. While UVA rays can penetrate deeper into the skin and are associated with aging and long-term skin damage, it is the UVB rays that are more directly linked to immediate skin burning sensations upon sun exposure. UVC rays, while highly dangerous, are mostly absorbed by the earth's ozone layer and do not typically affect us on the ground. Infrared rays, although they can heat the skin, do not cause burns in the same way that UV rays do. Therefore, understanding the distinction between these types of rays is crucial for skin protection and awareness of the risks associated with sun exposure.