Question: What is the concept of wave-particle duality?

Options:

1. Particles can exhibit both wave-like and particle-like properties.
2. Waves can only exist in one state at a time.
3. Particles cannot interfere with each other.
4. Light can only behave as a wave.

Correct Answer: Particles can exhibit both wave-like and particle-like properties.

Solution:

Wave-particle duality is a fundamental concept in quantum mechanics that states that every particle or quantum entity can be described as either a particle or a wave, depending on the experimental conditions.