Infrared waves emitted from glowing heat exemplify which kind of heat transfer?

Infrared waves emitted from glowing heat exemplify which kind of heat transfer?

• A. Conduction
• B. Convection
• C. Radiation
• D. Induction

Answer: (C)

The correct choice is radiation because it refers to the transfer of heat in the form of infrared waves, which can travel through a vacuum or air without the need for a medium. This type of heat transfer occurs when energy is emitted in the form of electromagnetic waves, allowing heat to be transferred from one object to another without direct contact. In contrast, conduction involves heat transfer through direct contact between materials, where energy is transferred from one molecular layer to another. Convection occurs in fluids (liquids or gases) where warmer areas of fluid rise, and cooler areas sink, creating a circulation pattern that transfers heat. Induction refers to a method of heating that uses electromagnetic fields to induce currents in conductive materials, typically seen in certain types of cooktops. Understanding these distinctions is important for grasping how different forms of heat transfer operate under various circumstances and materials.

The correct choice is radiation because it refers to the transfer of heat in the form of infrared waves, which can travel through a vacuum or air without the need for a medium. This type of heat transfer occurs when energy is emitted in the form of electromagnetic waves, allowing heat to be transferred from one object to another without direct contact.

In contrast, conduction involves heat transfer through direct contact between materials, where energy is transferred from one molecular layer to another. Convection occurs in fluids (liquids or gases) where warmer areas of fluid rise, and cooler areas sink, creating a circulation pattern that transfers heat. Induction refers to a method of heating that uses electromagnetic fields to induce currents in conductive materials, typically seen in certain types of cooktops.

Understanding these distinctions is important for grasping how different forms of heat transfer operate under various circumstances and materials.