What is ultra violet rays?
Ultra violet rays is a form of energy that comes from the sun, when it reaches the earth surface ultra violet although UV rays provide vitamin D but an extensive exposure of UV light can cause skin cancer.
ultraviolet radiation is a form of energy traveling through space.Some of the most frequently recognized types of energy are heat and light. These, along with others, can be classified as a phenomenon known as electromagnetic radiation. Other types of electromagnetic radiation are gamma rays, X-rays, visible light, infrared rays, and radio waves. The progression of electromagnetic radiation through space can be visualized in different ways. Some experiments suggest that these rays travel in the form of waves. A physicist can actually measure the length of those waves . It turns out that a smaller wavelength means more energy. At other times, it is more plausible to describe electromagnetic radiation as being contained and traveling in little packets, called photons
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