Question

1. in the photoelectric effect, electrons are ejected from a metal surface when it is exposed to light of a certain frequency. what conclusion did this lead to? a. light behaves only as a wave b. energy of light is continuous c. light has particle - like properties called photons d. electrons behave as waves

Explanation:

The photoelectric effect shows that light can eject electrons from a metal surface when it has a certain frequency. This phenomenon can't be explained by the wave theory of light alone. Instead, it supports the idea that light has particle - like properties (photons), where the energy of light is quantized and each photon has a specific amount of energy. Option A is wrong because the photoelectric effect shows light isn't only a wave. Option B is wrong as the photoelectric effect shows light energy is quantized (not continuous). Option D is about electron wave behavior, which is not related to the conclusion from the photoelectric effect.

Answer:

C. Light has particle - like properties called photons