Question

what happens to the Radiant heat when it falls on a smooth surface surface​

Answer 1

Answer:

Radiation is the form of heat transfer in which the heat flows from a hotter body to a colder body, without heating the medium

.We receive sunlight in the form of radiant heat. When the radiant heat falls on a body, part of it is absorbed and the rest of it is reflected back. The absorption of radiant heat by a body depends on its absorptive, reflective and transitive properties

Answer 2

Answer:

If the surface is smooth enough most of the radiation reflects back and a very less part is absorbed. Consider mirror. The surface is so smooth that the light (Radiation) hardly absorbed.