Mathematics · Dual Nature of Radiation Calculations
The work function of a photosensitive metal surface is 3.1 eV. Calculate the threshold wavelength of the radiation required to eject an electron from this surface. (Take hc = 1240 eV·nm)
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1500 nm
- 2400 nm✓
- 3300 nm
- 4200 nm
Correct answer
400 nm
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