The process by which a metal, heated to high temperature, gives off electrons from its surface is known as
A
photoelectric emission
B
thermionic emission
C
radioactive emission
D
Held emission
E
secondary emission
Verified Correct Answer: B.
Physical Principles & Numerical Solution
No expanded working has been attached for this question yet. The verified answer is Option B.
Source: Myschool Past Questions Archive (Record #24300)