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Question
When you approach fire, you feel heat on your body. Which of the following mode of heat transfer is involved in this ?
When you approach fire, you feel heat on your body. Which of the following mode of heat transfer is involved in this ?
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Solution
The correct option is B Radiation
Heat radiation is the transfer of energy, in the form of electromagnetic waves, through space. The heat emitted from fire, is transmitted through space in the form of radiation. Hence, when you approach fire, you feel heat on your body.. This is the reason that, when facing the fire, only the front is warmed. The backside is not warmed until the person turns around.
The more you go closer to the fire, more the amount of radiation is received.
Heat radiation is the transfer of energy, in the form of electromagnetic waves, through space. The heat emitted from fire, is transmitted through space in the form of radiation. Hence, when you approach fire, you feel heat on your body.
.
This is the reason that, when facing the fire, only the front is warmed. The backside is not warmed until the person turns around.
The more you go closer to the fire, more the amount of radiation is received.
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