alleryIn photoelectric effect, intensity of light affects:
AThreshold frequency
BMaximum KE of photoelectrons
CWork function
DNUMBER of photoelectrons emitted per second
Answer & Solution
Correct answer: D. NUMBER of photoelectrons emitted per second
Higher intensity = more photons per second = more photoelectrons emitted per second.
But max KE of each electron is determined only by photon frequency (KE_max = hν - φ), NOT intensity.
This was inexplicable classically.
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