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The average solar irradiance received by earth on the top of its atmosphere per unit surface area is _____ W/m22.2600 W/m221360 W/m22670 W/m22340 W/m2

Question

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Solution

To determine the average solar irradiance received by Earth on the top of its atmosphere, we can refer to well-established data from solar energy studies.

Average Solar Irradiance

The average value of solar irradiance, also known as the solar constant, is approximately 1361 W/m². This figure represents the amount of solar energy received per unit area at the top of Earth's atmosphere when the Sun is directly overhead.

Evaluating the Options

Given the options you provided:

  1. 22600 W/m²
  2. 1360 W/m²
  3. 2670 W/m²
  4. 2340 W/m²

By comparing these values, it is clear that 1360 W/m² is the closest and historically accepted approximation for the solar constant.

Conclusion

The average solar irradiance received by Earth at the top of its atmosphere per unit surface area is 1360 W/m².

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