Question

you are sitting near a fireplace . Explain how is heat getting transferred to you from the fire ?​

Answer 1

• A fire spreads by transferring heat energy in three ways: Radiation, Convection, and Conduction. Radiation refers to the emission of energy in rays or waves. ... It is the type of heat one feels when sitting in front of a fireplace or around a campfire. It travels in straight lines at the speed of light.

Answer 2

Fire gives off heat in all three modes. Since air is a poor conductor of heat, you won't get much heat from a campfire by conduction unless you put your hand in the fire. Assuming you're sitting a few feet from the campfire, we can ignore heat transfer.  In contrast, the heat from a campfire carried by convection shoots straight up into the sky and never reaches you (i.e. hot air rolls up). So when you sit by a campfire, almost one hundred percent of the heat you receive from the fire is transmitted by thermal radiation. This is why the side of your body facing the fire heats up, while the side away from the fire stays cool. Thermal radiation is a form of light, and light travels in straight lines. The side of your body facing away from the fire is literally in shadow and cannot receive heat radiation.

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