Explain the concept of radiation and discuss it... - SS2 Physics Heat and Thermodynamics Question

Radiation is the heat transfer mechanism that occurs through electromagnetic waves without the need for a medium. Unlike conduction and convection, radiation can occur in a vacuum. Heat energy is emitted in the form of electromagnetic waves, typically in the infrared region. Radiation does not require direct contact between objects. It can travel through space and is responsible for the transfer of heat from the Sun to the Earth. Other examples include feeling the warmth of a campfire or the heat emitted by a glowing filament in an incandescent bulb. Radiation also plays a crucial role in applications such as infrared heating, solar panels, and thermal imaging.