Multiple choice

Which of the following does not affect the rate of thermionic emission?

  1. Nature of the metal

  2. Temperature of surface of the metal

  3. Shape of the metal

  4. Both temperature and shape of the metal

  5. Both temperature and surface area of the metal
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Thermionic emission does not depend on the shape of the metal.

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