AP Physics 2mediummcq1 pt
The photoelectric effect demonstrates which of the following principles?
A.B) Light behaves as a particle
B.A) Light behaves as a wave
C.D) Electrons behave as particles
D.C) Electrons behave as waves
Explanation
Core Concept
The photoelectric effect demonstrates the particle nature of light, where light is composed of discrete packets of energy called photons. Each photon has energy E = hf, and the photoelectric effect equation is hf = Φ + K_max, where Φ is the work function and K_max is the maximum kinetic energy of emitted electrons.
Correct Answer
AB) Light behaves as a particle
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