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Question 1:

Wave-particle duality refers to the concept that:

A) All particles can behave as waves
B) All waves can behave as particles
C) Both particles and waves can exhibit wave-like and particle-like properties
D) Waves and particles are completely separate entities

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Explanation: The correct answer is C) Both particles and waves can exhibit wave-like and particle-like properties. Wave-particle duality suggests that particles, such as electrons and photons, can exhibit wave-like properties (e.g., interference and diffraction), while waves, such as light and sound, can exhibit particle-like properties (e.g., energy quantization).

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Question 2:

The phenomenon where electrons exhibit wave-like behavior when passing through a double-slit experiment is known as:

A) Diffraction
B) Interference
C) Polarization
D) Photoelectric effect

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Explanation: The correct answer is A) Diffraction. When electrons pass through a double-slit experiment, they exhibit diffraction patterns, which is a characteristic behavior of waves. This phenomenon demonstrates the wave-like behavior of particles and supports the concept of wave-particle duality.

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Question 3:

Which experiment provided evidence for the wave-like behavior of light?

A) Double-slit experiment
B) Photoelectric effect
C) Compton scattering
D) Davisson-Germer experiment

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Explanation: The correct answer is A) Double-slit experiment. The double-slit experiment, conducted with light, demonstrated interference patterns, which is a characteristic behavior of waves. This experiment provided evidence for the wave-like behavior of light and supported the concept of wave-particle duality.

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Question 4:

Which physicist proposed the wave-particle duality theory?

A) Albert Einstein
B) Max Planck
C) Louis de Broglie
D) Erwin Schrödinger

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Explanation: The correct answer is C) Louis de Broglie. Louis de Broglie, a French physicist, proposed the wave-particle duality theory in his doctoral thesis in 1924. He suggested that matter particles, like electrons, also exhibit wave-like properties, which was later confirmed by experimental observations.

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Question 5:

Which property of light is explained by wave-particle duality?

A) Reflection
B) Refraction
C) Diffraction
D) Polarization

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Explanation: The correct answer is C) Diffraction. The phenomenon of diffraction, where waves bend or spread out when passing through an obstacle or aperture, is explained by wave-particle duality. Light, as both a wave and a particle, exhibits diffraction, providing evidence for its wave-like behavior.