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AP Physics 2: Waves, Sound, and Physical Optics

~12%–15% of multiple-choice exam weight

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Introductory modern physics topics such as quantum phenomena and atomic models. Expect questions involving Photoelectric effect and particle–wave duality (introductory); Atomic models and basic nuclear concepts.

Try explaining this unit's core idea to someone else in under 60 seconds. If the explanation drifts, you found a gap worth fixing before test day.

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