Question

Which statement below best describes the quantum view of light and matter?

A. Light behaves like a wave sometimes, and sometimes like a particle; matter always behaves like a particle.

B. Light behaves like a wave, and matter behaves like particles.

C. Both light and matter behave like particles.

D. Both light and matter behave like waves sometimes, and sometimes like particles.

Answer 1

The correct option is D.
The Quantum theory states that both light and matter are made up of small particles that possess wavelike and particle like properties. This is described as the dual nature of light and matter. Light is made up of photons while matter is made up of electron, proton and neutron. The two can behave as both waves and particles.