Q. The thermionic emission of electron is due to
A) Electromagnetic field
B) Electrostatic field
C) High temperature
D) Photoelectric effect
Explanation
The correct answer is Option C: High temperature.
A detailed explanation for this question is being prepared.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.