Question

Describe the factors on which the amount of radiation absorbed by an object depends.

Answer 1

1. Radiation is the means of transferring heat in which no medium is required.
2. All objects radiate heat and the amount of heat transferred depends on the following factors:
   (a) The colour and texture of the surface- Dark surfaces absorb and radiate more heat than light surfaces.
   (b) Surface area- If we compare two objects with the different surface areas then objects with more surface area radiate more heat.
   (c) Surface temperature- Higher the temperature of the surface, the greater will be the radiation emitted by it.