Question

in which situation would the particle model of electromagnetic radiation be most useful for explaining the observed effects?

○ light ejecting electrons from a metal surface

○ light waves spreading through a small opening

○ light refracting as it passes through a glass prism

○ light reflecting off a smooth surface like a mirror

Explanation:

The particle model of electromagnetic radiation (photons) is crucial for explaining the photoelectric effect (light ejecting electrons from a metal surface). Light waves spreading through a small opening (diffraction), light refracting through a prism (wave - like behavior), and light reflecting off a mirror (wave - like or geometric optics) are better explained by wave models.

Answer:

light ejecting electrons from a metal surface