Environmentalhard · Past Paper
What is the 'Solar Constant'?
ATemperature of the sun
BAmount of solar energy reaching the top of the atmosphere (approx. 1361 W/m²)
CThe age of the sun
DThe speed of solar wind
✓ Correct Answer: B — Amount of solar energy reaching the top of the atmosphere (approx. 1361 W/m²)
The solar constant is the flux of solar radiation on a surface perpendicular to the rays at the mean distance from the sun.
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