1.
When we use a room heater to heat the room, heat is transferred from the heater by all three
modes .conduction, convection and radiation. Can you explain how?
(Hint: Recall the components of a room heater)
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Answer:
CONDUCTION- The air particles near heater start to vibrate then they vibrate their neighbors this process continues and thus heat is transferred by conduction
CONVECTION- air particle near heater heated now as we know gases are always in random motion so this heated air is then continously replaced by the surrounding air as they move continously ( air is not fixed at a point)
RADIATION- all the matter around us emit radiation at all temperature and if we heat them then the emission of radition increases because heat provides energy fo emission thus heater also emit radiation
Explanation:
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