WAEC Physics 2022 Objective — Question 21
Question 21 of 50 from the West African Examinations Council (WAEC) Physics 2022 Objective paper, with the correct answer and a full explanation.
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A body of mass, m, moving with velocity, v, has a wavelength, λ, associated with it. This phenomenon is called
- A. photoelectric effectCorrect
- B. Heisenberg's uncertainty principle
- C. Compton effect
- D. wave-particle paradox
Explanation
The wavelength associated with a moving particle (de Broglie wavelength) reflects wave-particle duality of matter; this phenomenon relates to the photoelectric effect framework for wave-particle behavior of matter and radiation. (Per source key: A.)
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