alleryThe number of photoelectrons emitted per second depends on the:
ALength of the wire
BNumber of photons
CEnergy per photon
DMetal's own colour
Answer & Solution
Correct answer: B. Number of photons
1. Each absorbed photon can free at most one electron.
2. More photons arriving means more electrons leaving.
3. So the count depends on the number of photons per second.
4. The answer is number of photons.
_Source: syllabus Physics, Ch 11 'Dual Nature of Radiation and Matter'_
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