AP Physics 2mediummcq1 pt
The photoelectric effect demonstrates that light behaves as:
A.A wave only
B.A particle only
C.Both a wave and a particle
D.Neither a wave nor a particle
Explanation
Core Concept
The photoelectric effect demonstrates the particle nature of light—photons with energy E = hf eject electrons only when their frequency exceeds a threshold, regardless of intensity.
Correct Answer
BA particle only
More Unit 7: Quantum, Atomic, and Nuclear Physics practice questions
- hardThe Bohr model explains hydrogen's spectrum but not
- hardX-rays are produced when
- hardWhich statement about radioactivity is correct?
- easyA photon's momentum is
- easyThe energy released in a nuclear reaction appears as
Practice more AP Physics 2 questions with full explanations
Practice Unit 7: Quantum, Atomic, and Nuclear Physics Questions →