Which phenomena support only the particle theory of light? Select 2 options.

Question

reflection
bending around objects
traveling in a straight path
interference
photoelectric effect

Answer 1

The phenomena that support only the particle theory of light are:

1. Photoelectric effect - This phenomenon can only be explained by considering light as being made up of particles called photons, which interact with electrons in a material.

2. Reflection - While reflection can also be explained in terms of wave theory, certain interpretations of the particle theory (such as photons bouncing off surfaces) support reflection as well.

Bending around objects (diffraction) and interference are primarily explained by wave theory, while traveling in a straight path is a characteristic of both particles and waves.