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- The sun’s energy travels to Earth at the speed of light in the form of electromagnetic radiation (EMR). The electromagnetic spectrum exists as waves of different frequencies and wavelengths. The frequency of a wave represents how many times the wave repeats itself in a certain unit of time.
education.nationalgeographic.org/resource/sun/
Energy from the Sun reaches Earth in several different forms. Some of the energy is in the form of visible light we can see, and other energy wavelengths, such as infrared, and small amounts of ultraviolet radiation, x-rays, and gamma rays, that we can’t see.
The majority of the Sun’s radiation reaching Earth is in the form of visible light we can see and invisible infrared energy that we can’t see. A smaller portion of sunlight is made up of ultraviolet radiation, which is also invisible to our eyes.
Most of the light emitted by the sun is characteristic of a blackbody radiator at this temperature. The spectrum of the sun's light is also affected by the passage of that light through the solar atmosphere, where ions, atoms, and molecules absorb light in very narrow wavelength bands.
The Sun gives off light that has even more energy than purple. One type of this light is called ultraviolet (UV) and it can give you a sunburn. Another type of light with a lot of energy are X-rays, just like you get when you go to the dentist.
Aug 23, 2023 · The energy is emitted in various forms of light: ultraviolet light, X-rays, visible light, infrared, microwaves and radio waves. The sun also emits energized particles (neutrinos, protons) that make up the solar wind .
Feb 2, 2024 · The most harmful UV rays are almost completely absorbed by Earth’s atmosphere. Less potent UV rays travel through the atmosphere, and can cause sunburn. The sun also emits infrared radiation —whose waves are a much lower-frequency. Most heat from the sun arrives as infrared energy.
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Oct 27, 2022 · Visible Light. Most of the radiation from the Sun is in the form of visible light. Within the visible light region of the electromagnetic spectrum above, we find the wavelengths for every color of the rainbow. Red light has the longest wavelength and violet the shortest.
