Determining the exact number of photons in the visible light and infrared (IR) regions from the Sun is a complex calculation that depends on various factors such as solar irradiance, atmospheric conditions, and the specific wavelengths considered. However, I can provide you with some general information on the subject.
Visible Light: The Sun emits a broad spectrum of electromagnetic radiation, including visible light. The amount of visible light reaching the Earth's surface depends on factors like atmospheric scattering and absorption. On average, the solar irradiance at the top of the Earth's atmosphere is about 1361 watts per square meter (W/m²) across the entire solar spectrum, which includes visible light. However, due to atmospheric effects, the actual amount of visible light reaching the Earth's surface is typically lower.
Infrared Light: Infrared radiation encompasses a range of wavelengths longer than those of visible light. The Sun also emits infrared radiation, particularly in the near-infrared region. The amount of infrared radiation reaching the Earth's surface varies depending on atmospheric conditions and the specific wavelengths considered.
Regarding the specific number of photons in visible light and infrared regions, it would require detailed calculations taking into account factors such as the energy per photon at different wavelengths, solar irradiance, and the areas involved. Obtaining precise values would involve complex measurements and modeling.
It's worth noting that while the Sun emits a substantial amount of infrared radiation, the Earth's surface also emits infrared radiation due to its temperature. This emitted infrared radiation is a result of thermal energy and is known as terrestrial or longwave infrared radiation.
In summary, while I cannot provide you with the exact number of photons in visible light and infrared regions from the Sun and their subsequent emissions, understanding the broad spectrum of solar radiation and its interaction with the Earth's atmosphere and surface can give us a general understanding of the energy distribution.