MCQEasyJEE Main 2024 · 30 January, Shift 1Photoelectric Effect

Physics Question from JEE Main 2024 · 30 January, Shift 1

The work function of a substance is 3.0eV3.0 \, \text{eV}. The longest wavelength of light that can cause the emission of photoelectrons from this substance is approximately:

  • A

    215nm215 \, \text{nm}

  • B

    414nm414 \, \text{nm}

  • C

    400nm400 \, \text{nm}

  • D

    200nm200 \, \text{nm}

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