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The photoelectric threshold wavelength of tungsten is 230 nm . The energy of electrons ejected from its surface by ultraviolet light of wavelength 180 nm is:

Options

  1. A0.15 eV
  2. B1.5 eV
  3. C15 eV
  4. D1.5 keV

Correct answer

B. 1.5 eV

Step-by-step solution

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