alleryThe minimum frequency below which no photoemission occurs is the:
ATerminal frequency
BTolerant frequency
CThreshold frequency
DThermal frequency
Answer & Solution
Correct answer: C. Threshold frequency
1. Below a certain frequency no electrons are emitted at all.
2. This minimum value is called the threshold frequency.
3. So the correct answer is threshold frequency.
_Source: syllabus Physics Part II, Ch 11 'Dual Nature of Radiation and Matter'_
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