alleryBelow the threshold frequency, photoelectric emission:
AIs very intense
BIs delayed once
CDoubles slowly
DDoes not occur
Answer & Solution
Correct answer: D. Does not occur
1. Each photon must carry at least the work function.
2. A photon below the threshold cannot supply it.
3. So no emission occurs at all.
4. The answer is does not occur.
_Source: syllabus Physics, Ch 11 'Dual Nature of Radiation and Matter'_
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