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MUF0122 Physics Unit 2 - Semester 1, 2025

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It is observed that light of 430 nm just begins to emit  photoelectrons.  What is the classical prediction if the wavelength of the incident light is changed to 440 nm?

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Ultraviolet light shining on a metal initially emits electrons.  What is the classical prediction if the intensity of the light is increased?

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Which of the following statements is incorrect?

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The photoelectric emission confirms

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Infrared light shined on a metal initially emits no electrons.  What is the classical prediction if the intensity of the light is increased?

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The photoelectric current depends upon

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When the frequency of the incident light is less than the threshold frequency

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It is observed that light of 430 nm just begins to emit photoelectrons.  What is the quantum prediction if the wavelength of the incident light is changed to 440 nm?

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In the photoelectric effect, electrons should be removed from the

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The wave associated with a moving particle is called

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