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Quantum physics, also known as quantum mechanics, is a branch of science that delves into the behavior of the tiniest particles in the universe. While it has provided us with remarkable insights into the fundamental nature of reality, it's also a realm filled with uncertainty and limitations. In this explainer, we'll uncover why we can't know everything in quantum physics.The Quantum World: A Different RealityQuantum physics operates by a set of rules that are profoundly different from those governing the macroscopic world we observe in our daily lives. At the quantum level, particles like electrons and photons exhibit behaviors that defy our classical intuition.Heisenberg's Uncertainty PrincipleOne of the key principles driving uncertainty in quantum physics is Werner Heisenberg's Uncertainty Principle. It states that certain pairs of properties, like a particle's position and momentum, cannot be simultaneously known with arbitrary precision. The more accurately we know one property, the less accurately we can know the other. This isn't a limitation of our measuring tools; it's a fundamental feature of the quantum world.Wave-Particle DualityAnother puzzling aspect of quantum physics is wave-particle duality. Particles like electrons can exhibit both particle-like and wave-like behaviors, depending on how they are observed. This dual nature adds to the complexity of understanding their properties fully.

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Explained: Why we can't know everything in quantum physics - Times of India