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What is long wavelength radiation given out by stars?
Long wavelength radiation given out by stars is typically in the form of infrared radiation. This type of radiation has longer wavelengths than visible light and is emitted by stars as a product of their high temperatures. It is important for studying the properties and evolution of stars.
How is global warming affected by the relative transparencies of the atmosphere to long and short wavelength electromagnetic radiation?
Global warming is influenced by the atmosphere's varying transparency to different wavelengths of electromagnetic radiation. Short-wavelength radiation from the sun, such as ultraviolet and visible light, can easily penetrate the atmosphere and reach the Earth's surface. However, long-wavelength radiation, primarily infrared emitted by the Earth, is less transparent to greenhouse gases, which trap this heat and prevent it from escaping back into space. This difference in transparency contributes to the greenhouse effect, leading to an increase in global temperatures.
What type of radiation do stars emit?
Stars emit various types of radiation, including visible light, ultraviolet radiation, and infrared radiation. They also emit X-rays and gamma rays. The type of radiation emitted depends on the temperature and composition of the star.
Does sunlight come in longwave radiation or shortwave?
Wein's Displacement Law explains the difference between long and shortwave radiation. Shortwave radiation has shorter, more high energy wavelengths (stronger with less distance to travel) while longwave radiation travels farther, but has less energy. Earth's radiation is 20 times longer than the maximum solar radiation, so it is referred to as longwave, while solar energy is referred to as shortwave radiation.
How long does it take for radiation from the sun to reach the earth?
Distance from the earth to the sun is about 93,000,000 miles. The speed of light is about 186,000 miles/second or about 8 minutes, 20 seconds.
Does the radiation emitted by earth's surface have longer or shorter wavelengths compared to solar radiation?
The radiation emitted by Earth's surface has longer wavelengths compared to solar radiation. Earth emits long-wave radiation in the infrared range, while solar radiation consists of shorter-wave radiation in the visible and ultraviolet ranges.
What are the differences between long wave radiation and shortwave radiation in terms of their impact on the Earth's atmosphere?
Longwave radiation refers to infrared radiation emitted by the Earth's surface and atmosphere, which can be absorbed by greenhouse gases and contribute to warming the atmosphere. Shortwave radiation, such as sunlight, is absorbed by the Earth's surface and then re-emitted as longwave radiation. This difference in wavelengths affects how energy is distributed in the atmosphere, with longwave radiation playing a key role in the greenhouse effect and shortwave radiation driving the Earth's climate system.
Are the radiation wavelengths emitted by the sun longer than those emitted by the earth?
The radiation emitted by the Earth peaks around 10 microns, whereas that from the sun peaks under 1 micron. This is why Earth's radiation is referred to as longwave and solar radiation as shortwave, commonly. All objects emit radiation because all objects have a temperature. In fact, using Wien's Law you can very simply calculate the wavelength, lambda, of maximum emission: lamda(max) = c/T where c is a constant (2897) and T is the temperature of the emitting surface in Kelvin.
When does the earth emit terrestrial radiation?
The Earth emits terrestrial radiation constantly, but the amount of radiation emitted depends on the temperature of the Earth's surface. Warmer objects emit more radiation than cooler objects, so the Earth emits the most terrestrial radiation during the day when it is exposed to sunlight.
The primary wavelenght of radiation emitted by earths surface are?
The primary wavelength of radiation emitted by Earth's surface is in the thermal infrared range, typically around 10 micrometers (μm). This is known as long-wave radiation, which the Earth emits as heat energy.
Is long wave heat radiation given off by the earth when the earth absorbs short wave radiation?
Yes, long-wave heat radiation is given off by the Earth as it absorbs short-wave radiation from the Sun. This process is known as the Earth's energy balance, where incoming solar radiation is absorbed by the Earth's surface and later re-emitted as long-wave heat radiation.
What is long wavelength radiation given out by stars?
Long wavelength radiation given out by stars is typically in the form of infrared radiation. This type of radiation has longer wavelengths than visible light and is emitted by stars as a product of their high temperatures. It is important for studying the properties and evolution of stars.
What type of radiation is reflected away from the earths surface?
Visible light and infrared radiation are mainly reflected away from the Earth's surface. These wavelengths are absorbed by the atmosphere and then reflected back out into space, helping to regulate Earth's temperature.
How is global warming affected by the relative transparencies of the atmosphere to long and short wavelength electromagnetic radiation?
Global warming is influenced by the atmosphere's varying transparency to different wavelengths of electromagnetic radiation. Short-wavelength radiation from the sun, such as ultraviolet and visible light, can easily penetrate the atmosphere and reach the Earth's surface. However, long-wavelength radiation, primarily infrared emitted by the Earth, is less transparent to greenhouse gases, which trap this heat and prevent it from escaping back into space. This difference in transparency contributes to the greenhouse effect, leading to an increase in global temperatures.
How does long wavelength radiation contribute to the greenhouse effect?
Long wavelength radiation, such as infrared radiation, is emitted by Earth's surface after absorbing solar radiation. Greenhouse gases in the atmosphere trap this long wavelength radiation, leading to a warming effect known as the greenhouse effect. This process helps regulate Earth's temperature by keeping the planet warm enough to support life.
What type of radiation from Earth is the long-wave radiation absorbed by greenhouse gases?
The long-wave radiation absorbed by greenhouse gases is primarily in the form of infrared radiation. After the Earth's surface absorbs solar energy, it re-emits this energy as infrared radiation, which has longer wavelengths compared to the short-wave radiation from the sun. Greenhouse gases in the atmosphere, such as carbon dioxide and methane, absorb and re-radiate this infrared radiation, contributing to the greenhouse effect and warming the planet.
How does a greenhouse gas work?
Long wave radiation emitted by the sun reflects off earth's surface and is absorbed by heat trapping gas in the atmosphere. Nitrogen and oxygen do NOT absorb infrared radiation, but CO2, CH4, and H2O DO trap heat.
