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AP EAMCET202522 May 2025Evening ShiftPhysicsDual Nature of MatterActual

If the threshold wavelength of light for photoelectric emission to take place from a metal surface is 6250 Å , then the work function of the metal is (Planck's constant =6.6 10⁻³⁴ Js )

Options

  1. A3.98 ~eV
  2. B1.98 ~eV
  3. C2.98 ~eV
  4. D4.98 ~eV

Correct answer

B. 1.98 ~eV

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