Multiple choice

The mode of transfer of heat that does not require intervening medium is _______.

  1. conduction

  2. convection

  3. radiation

  4. none of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Radiation is the only heat transfer method that does not require a material medium. It occurs through electromagnetic waves (infrared radiation). Conduction requires direct contact, convection requires bulk motion of fluids, but radiation can travel through vacuum.

Keep practicing — related questions