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Railways PYQCBT 1 2016

RRB NTPC · Question 2

________ is not a type of heat transfer. A. Diffusion B. Reflection C. Convection D. Radiation

  1. B

  2. A

  3. D

  4. C

Show answer & explanation

Answer: (A) B

Explanation

Heat travels by conduction, convection and radiation (and diffusion of particles also carries heat). Reflection is the bouncing back of waves such as light from a surface; it is not a mode of heat transfer.