Question

Why does the intensity of solar radiation striking earth's surface change when the sun angle changes? choose all that apply.

Answer 1

When the Sun's rays hit Earth at greater angles, their courses are shorter; when they hit Earth at lower angles, their trajectories are longer.

What is Solar Radiation?

A fraction of the electromagnetic energy emitted by the sun, including infrared, visible, and ultraviolet light, is known as sunlight. When the Sun is above the horizon, sunlight on Earth is seen as daylight after being dispersed and filtered by the atmosphere.

UV, visible (PAR), and infrared are the three important bands, or ranges, of the sun energy spectrum. Infrared radiation accounts for 49.4% of the light that reaches the surface of the Earth, whereas visible light accounts for 42.3% . Just over 8% of the total solar energy is made up of ultraviolet light.

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