1. Absorption of Sunlight:
- Black Surfaces: Dark colors, including black, have a higher absorption rate for solar radiation. When sunlight strikes a black car, a significant portion of the light is absorbed and converted into heat, causing the car's surface to become warmer.
- White Surfaces: In contrast, white surfaces have a high reflectance rate. They reflect most of the sunlight that hits them, preventing much of the heat from being absorbed. White cars, therefore, stay relatively cooler in the sun.
2. Thermal Radiation:
- Black Surfaces: Once a black car absorbs sunlight, it also emits thermal radiation, further contributing to heat buildup.
- White Surfaces: On the other hand, white cars emit less thermal radiation, minimizing the increase in temperature.
As a result of these factors, black cars tend to feel hotter to the touch and reach higher internal temperatures compared to white cars when exposed to the same amount of sunlight. This can make a significant difference in the comfort of driving on a hot day. It's also worth noting that other factors, such as the material and insulation of the car, can influence the overall heat absorption and retention.
