When comparing material for absorption of solar radiation, which of these characteristics describes a material that is the best absorber of solar radiation?

Question

options:

white and rough
white and rough

black and smooth
black and smooth

black and rough
black and rough

white and smooth

Answer 1

The best absorber of solar radiation from the provided options is black and rough.

Here's why:

• Black color: Black surfaces absorb more sunlight compared to lighter surfaces due to their lower albedo. This means they reflect less light and absorb more heat.

• Rough texture: A rough surface increases the surface area and reduces reflection, allowing more solar radiation to be absorbed.

Therefore, a material that is black and rough will generally be the most effective at absorbing solar radiation.