Q. Match the Columns I and II.
Column I Column II
A Field emission 1 Heat is supplied to the metal surface
B Photoelectric emission 2 Electric field is applied to the metal surface
C Thermionic emission 3 Light of suitable frequency illuminates the metal surface
D Secondary emission 4 Striking fast moving electrons on the metal surface

 1380  168 Dual Nature of Radiation and Matter Report Error

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