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Two identical photocathodes with frequencies n1 and n2: relation between the photoelectron velocities

The same question, asked 2 times: 9 May 2023 S1, 20 Apr 2026 S1. Every wording below, oldest first.

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  1. Question 1

    9 May 2023 S1

    45
    Two identical photocathodes receive light of frequencies n1n_1 and n2n_2. If the velocities of the emitted photoelectrons of mass mm are V1V_1 and V2V_2 respectively, then (hh = Planck's constant)

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  2. Question 2

    20 Apr 2026 S1

    145
    Two identical photocathodes receive light of frequencies n1n_1 and n2n_2. If the velocities of the emitted photoelectrons of mass m are V1V_1 and V2V_2 respectively, then (hh = Planck's constant)

    Tap an option to check your answer.