Question

When sunlight hits black pavement, the pavement becomes hot. This is an example of what type of wave behavior?

Option 1: Reflection
Option 2: Refraction
Option 3: Absorption
Option 4: Diffraction

Answer 1

Sunlight hitting black pavement resulting in increased heat is an example of absorption of light waves. Black surfaces, due to high emissivity, are effective in absorbing and radiating heat when exposed to electromagnetic radiation like sunlight.

Step-by-step explanation:

When sunlight hits black pavement, the pavement becomes hot because of absorption. This behavior is where the material captures the energy of the light wave, leading to the thermal agitation of molecules within the pavement, resulting in an increase in temperature. The color of the pavement plays a crucial role, as black surfaces are effective absorbers and radiators of electromagnetic radiation, due to their high emissivity value. As such, black asphalt will feel hotter in comparison to a lighter-colored surface when both are exposed to sunlight.