PHYSICS · Single correct · CBSE · Physics · Thermal Properties of Matter · Thermal Properties of Matter
Problem
On a clear but cold winter day, black asphalt pavement becomes noticeably warmer than adjacent light-colored concrete. Which mechanism is primarily responsible for the larger temperature rise of the asphalt?
(a) Greater absorption of solar radiation by the asphalt surface
(b) Higher thermal conductivity draws more heat from the ground into the asphalt
(c) Asphalt’s lower specific heat capacity allows its temperature to rise more for the same energy input
(d) Asphalt’s dark surface has a lower emissivity, so it loses less energy by radiation and becomes warmer