The Effects Of Ultraviolet Waves Essay

1121 words - 5 pages

Electromagnetic Waves essay

Radiation is the emission of energy as electromagnetic waves or as moving subatomic particles; an example of radiation is, electromagnetic radiation.This is a form of radiant energy which travels through space via electromagnetic waves. These waves can be found in the electromagnetic spectrum. This is the range of all possible frequencies of electromagnetic radiation.The range of waves in the electromagnetic spectrum range from radio waves, to gamma rays, the waves in the middle consists of infrared, visible, and ultraviolet waves. In this spectrum frequency and wavelength play a big part on which kind of wave is present. At different frequencies, (the amount of waves per second) and wavelength ,( the length of the wave measured from peak to peak) there are different waves, as these factors change so does the property of the wave. In this essay I will be talking about ultraviolet radiation.

In this diagram you can see the electromagnetic spectrum. It shows the different types of waves. It also goes on to show the wavelength of the waves, as the wave length changes so do the properties of the wave.

The sun emits several types of radiation, most of radiation reaches the earth's surface. Warmth from the sun comes from infrared radiation. While the light and colours we distinguish is caused by visible radiation. Infrared and visible radiation are not harmful under ordinary circumstances. The higher energy part of the spectrum is ultraviolet radiation, a known carcinogen (cancer-causing agent). Both UVA and UVB radiation from the ultraviolet radiation reach the earth's surface. Exposure to either increases your risk of melanoma and other skin cancers. UVC radiation (also part of ultraviolet radiation) and X-rays have even higher energies, but are absorbed by the atmosphere and never reach the earth's surface. According to Skin Cancer Foundation ‘ultraviolet radiation is part of the electromagnetic spectrum that reaches the earth from the sun. It has wavelengths shorter than visible light, making it invisible to the naked eye.’ Ultraviolet radiation has three wavelengths UVA, UVB and UVC. UVA is the longest of the three and has the measurements of 320 to 400 nanometer, UVB ranges from 290 to 320 nanometer and the shortest wavelength UVC usually absorbed by the ozone layer and does not reach the earth.

Even though heat keeps us from being cold. Ultraviolet radiation often carry the adverse cause of containing too much energy. For instance, infrared rays generate heat in about the same way as rubbing your hands together does. The energy contained in the infrared rays causes the molecules of the substance it hits, to vibrate back and forth. Anyhow, the energy contained in ultraviolet rays is higher, so instead of just causing the molecules to shake, it actually can hammer electrons aside from the atoms, and could also cause the molecules to split. As reported by the Skin Cancer Foundation, “this change is especially...

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