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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 is important about the peak wavelength of a thermal radiation spectrum?
The peak wavelength, is connected to the temperature of the objects. we have short peak wavelength when the temperature is high.
Does higher temperature mean short wavelength?
No, higher temperature does not necessarily mean shorter wavelength. In the context of radiation, higher temperature typically means higher frequency and shorter wavelength, according to Wien's Displacement Law. However, in general physics, temperature and wavelength are not directly related.
Is the color of star an effect of its temperature?
Yes. The apparent colour of a star is related to the peak wavelength of the light it emits. According to Wien's displacement law (look it up in Wikipedia) the peak wavelength is inversely proportional to the temperature. The higher the temperature, the shorter the peak wavelength. Wavelength decreases as one moves from red to blue in the visible spectrum, so a red star is cooler than a blue one.
How measure the sun temperature?
Use a spectrometer to measure the wavelength of the light. There is a direct, but inverse correlation of the wavelength to the temperature.
Is there any effect of wavelength on refractive index?
Yes, there is an effect called wavelength dispersion where the refractive index of a material can vary slightly with the wavelength of light passing through it. This is why materials like glass exhibit different refractive indices for different colors of light.
What is the wavelength of 310K?
310K refers to a temperature, not a wavelength. Temperature is a measure of the average kinetic energy of particles, while wavelength is a measure of the distance between successive peaks of a wave. The given information is not directly related to wavelength.
What is the relationship between the wavelength of light and temperature in a given system?
The relationship between the wavelength of light and temperature in a given system is that as the temperature of the system increases, the wavelength of the light emitted by the system also increases. This is known as Wien's displacement law, which states that the peak wavelength of light emitted by an object is inversely proportional to its temperature.
What is threshold wavelength?
Threshold wavelength refers to the minimum wavelength of light required to start a specific phenomenon, such as photoelectric effect or emission of electrons from a metal surface. Below this threshold wavelength, the desired effect does not occur.
How determine surface temperature of a star?
The surface temperature of a star can be determined by analyzing its spectrum. Specifically, scientists can observe the peak wavelength of light emitted by the star and use Wien's Law, which relates the peak wavelength to the temperature of the emitting object. By measuring the peak wavelength, astronomers can calculate the surface temperature of the star.
What effect temperature?
effect of temperature
By which law can temperature of stars be estimated?
The temperature of stars can be estimated using Wien's law, which states that the wavelength at which a star emits the most light is inversely proportional to its temperature. This relationship allows astronomers to analyze the peak wavelength of a star's spectrum to determine its temperature.
