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The heat from the filament of a lamp is transmitted to the surrounding mainly through

  • The heat from the filament of a lamp is transmitted to the surrounding mainly through Radiation.
  • When an electric current flows through the filament of a lamp, it heats up and emits electromagnetic radiation, including both visible light and infrared radiation.
  • This radiation is emitted in all directions from the filament and travels through the air until it is absorbed by nearby objects or surfaces.
  • The absorbed radiation causes the temperature of the surrounding objects or surfaces to increase, which is how the heat from the filament is transmitted to the surrounding.