Which of the following experiments prove the particle nature of light?
Correct answer: D. Photoelectric effect
- A. Interference
- B. Diffraction
- C. Reflection
- D. Photoelectric effect
Explanation
The photoelectric effect is an experiment that proves the particle nature of light. It shows that light can act as discrete packets of energy called photons, where the ejection of electrons from a material depends on the intensity and frequency of light, rather than its wave properties alone. This experiment provided strong evidence for the particle-like behavior of light.
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Light is studied through reflection, refraction, dispersion, interference, diffraction and polarization, linking ray behavior with its wave nature. Questions may involve mirrors, lenses, optical instruments, refractive index and image formation, while geometrical optics deals with rays and wave optics explains effects such as interference and diffraction.
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