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Question 1:

Which property of light is associated with its wave nature?

A) Particle nature
B) Frequency
C) Photon energy
D) Photodetection

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Explanation: The correct answer is B) Frequency. The wave nature of light is associated with its frequency. Light waves exhibit properties such as interference, diffraction, and polarization, which are characteristic of wave phenomena.

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Question 2:

What is the smallest unit of light called?

A) Photon
B) Electron
C) Proton
D) Neutron

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Explanation: The correct answer is A) Photon. The smallest unit of light is called a photon. Photons are packets of energy that exhibit both wave-like and particle-like properties. They carry electromagnetic energy in the form of light waves.

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Question 3:

What is the relationship between the energy of a photon and its frequency?

A) Directly proportional
B) Inversely proportional
C) Unrelated
D) Constant

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Explanation: The correct answer is A) Directly proportional. The energy of a photon is directly proportional to its frequency. This relationship is described by the equation E = hf, where E represents the energy of the photon, h is Planck's constant, and f is the frequency of the photon.

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Question 4:

Which experiment demonstrated the wave-particle duality of light?

A) Photoelectric effect
B) Double-slit experiment
C) Compton scattering
D) Michelson-Morley experiment

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Explanation: The correct answer is B) Double-slit experiment. The double-slit experiment, first performed by Thomas Young, demonstrated the wave-particle duality of light. Theexperiment showed that light could exhibit both wave-like interference patterns and particle-like behavior when passing through a double slit. This supported the idea that light has both wave and particle characteristics.

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Question 5:

What phenomenon occurs when a photon's energy is transferred to an electron, resulting in its ejection from a material?

A) Photodetection
B) Photovoltaic effect
C) Photoelectric effect
D) Photocatalysis

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Explanation: The correct answer is C) Photoelectric effect. The photoelectric effect occurs when a photon's energy is transferred to an electron, resulting in its ejection from a material. This phenomenon played a crucial role in establishing the particle nature of light and contributed to the development of quantum mechanics.