Physics · Dual Nature of Radiation and Matter
The work function of potassium is 2.3 eV and its threshold wavelength is 540 nm. The threshold wavelength for another metal whose work function is 4.6 eV will be:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 11080 nm
- 2540 nm
- 3270 nm✓
- 4135 nm
Correct answer
270 nm
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