To identify the accurate statements about the different types of radiation measured in total solar irradiance, let’s evaluate each statement provided:
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Radiation with short wavelength is emitted steadily and constantly from the Sun. - This statement is generally true. The Sun emits a continuous spectrum of electromagnetic radiation, including short wavelengths, which are a significant part of its output.
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Radiation in the short extreme ultraviolet range is most likely to have the wildest variation. - This statement is accurate. The extreme ultraviolet (EUV) radiation from the Sun is influenced by solar activity, such as solar flares and coronal mass ejections, which can cause significant variations.
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Radiation with long infrared wavelength is most likely to have the widest variation. - This statement is generally not true. While there can be some variation in infrared radiation due to factors such as atmospheric conditions, it is usually less variable compared to shorter wavelengths, especially in relation to solar activity.
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Radiation in visible light wavelength is emitted steadily and constantly from the Sun. - This statement is also generally true. While there may be some variation in brightness due to solar phenomena, the visible light emitted as a whole is relatively steady.
Based on this analysis, the two correct answers are:
- Radiation in the short extreme ultraviolet range is most likely to have the wildest variation.
- Radiation in visible light wavelength is emitted steadily and constantly from the Sun.