Question

According to wave-particle duality, electrons exhibit

• A. Only particle-like behavior
• B. Only wave-like behavior
• C. Neither wave nor particle behavior
• D. Both wave-like and particle-like behavior

Hint:

Remember: Electrons can interfere like waves but also impact screens as particles. This dual nature is a key postulate of quantum mechanics.

Answer 1

The Correct Option is D

The concept of wave-particle duality, introduced in quantum mechanics, asserts that entities like electrons can exhibit both wave-like and particle-like properties. This principle was solidified through key experiments:
 

• Wave-like behavior: Demonstrated in the famous double-slit experiment, where electrons create an interference pattern, a hallmark of waves.
• Particle-like behavior: Observed when electrons are detected as discrete packets (particles) upon striking a screen or detector.

This duality is fundamental to quantum theory, showing that electrons and other quantum particles cannot be described purely as particles or waves.

Why other options are incorrect:

• (A) and (B) are incomplete – electrons exhibit both behaviors.
• (C) contradicts experimental evidence and the foundational concepts of quantum theory.