Which of the following statement is true about the radiation emitted by human body?
Radiation is the transfer of energy through electromagnetic waves or particles. Unlike conduction and convection, radiation does not require a medium and can occur in a vacuum. It includes visible light, infrared radiation, ultraviolet rays, and other electromagnetic waves. Objects emit radiation based on their temperature and surface properties.
Class 11 Physics Chapter 10 Thermal Properties of Matter covers topics such as temperature and heat expansion of solids liquids and gases specific heat capacity and latent heat. It explains thermal equilibrium laws of thermodynamics and heat transfer methods like conduction convection and radiation. The chapter also explores how matter behaves at different temperatures.
Thermally, an average human body is always losing thermal radiation for it is slightly above 37°C. What radiates is dominantly in the infrared region. Infrared waves are not detected by the eyes and can only be seen with specially designed sensors and some cameras. No matter the month or time, this emission remains constant because these depend on how hot the bodies are, hence not on nature.
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