On a cold day, your feet feel warmer on a rug than on a tile floor because the foor is a good conductor and the rug is a good insulator. None of the above option D is the correct answer.
This refers to any substance or material that allows the passage of heat through it. for example copper, aluminum, silver, etc.
What is an insulator?
This refers to any substance or material that does not allow the passage of heat through it. for example rugs, wood, cotton, etc.
Both objects are the same temperature, but the tile floor is a good heat conductor as it moves heat rapidly away from the skin, which is warmer than the air temperature. The rug is a good heat insulator (poor heat conductor) which means it prevents the flow of heat and so feels comparatively warm.
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