Answer: This is because black objects or surfaces absorb heat more than white objects.
Explanation:
Light energy can be converted into heat energy. A black object absorbs all wavelengths of light and converts them into heat, so the object gets warm. A white object reflects all wavelengths of light, so the light is not converted into heat and the temperature of the object does not increase noticeably. heat is transferred to feet by heat conduction. Also since the feet is a cold body and the floor is hot,the method of heat transfer is CONDUCTION.
