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What is the photoelectric effect?
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The photoelectric effect is the emission of electrons from a material when it absorbs light of sufficient energy.
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Who introduced the theory of special relativity?
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Albert Einstein introduced the theory of special relativity in 1905.
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What is Planck's constant and why is it significant?
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Planck's constant is a fundamental constant used to describe the sizes of quanta. Its approximate value is 6.63 × 10^-34 Js.
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Define Heisenberg's uncertainty principle.
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Heisenberg's uncertainty principle states that the position and momentum of a particle cannot be simultaneously measured with precision.
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What is the dual nature of light?
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Light exhibits both wave-like and particle-like properties, known as wave-particle duality.
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Explain de Broglie's hypothesis.
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De Broglie's hypothesis proposes that all matter has wave-like properties, particularly noticeable at atomic scales.
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What is Schrödinger's equation?
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Schrödinger's equation is a foundational equation in quantum mechanics that describes how the quantum state of a physical system changes over time.
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What are virtual particles?
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Virtual particles are temporary particles that exist during quantum interactions, often only inside reactions, and they cannot be directly observed.
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Describe the concept of a quantum tunnel.
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Quantum tunneling is a phenomenon where particles pass through a barrier that they classically shouldn't be able to cross.
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What is the significance of the Pauli exclusion principle?
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The Pauli exclusion principle states that no two fermions can occupy the same quantum state within a quantum system.
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Define quantum entanglement.
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Quantum entanglement is a phenomenon where two or more particles become interconnected and the state of one can instantly influence the other, regardless of distance.
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What are blackbody radiations?
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Blackbody radiation is the emission of electromagnetic radiation by an idealized object which absorbs all incoming radiation.
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What theory did Paul Dirac help develop?
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Paul Dirac contributed to the development of quantum mechanics and quantum field theory, including predicting the existence of anti-particles.
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What is meant by the term 'quantum superposition'?
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Quantum superposition refers to a system existing in multiple states simultaneously until it is observed or measured.
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Explain what an electron cloud is.
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An electron cloud is the region around the nucleus where electrons are most likely to be found, representing the probability distribution of an electron's position.
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