Physics · Dual Nature of Radiation and Matter
In a photoelectric experiment, both sodium (work function = 2.3 eV) and tungsten (work function = 4.5 eV) metals are illuminated by an ultraviolet light of the same wavelength. If the stopping potential for tungsten is measured to be 1.8 V, then the value of the stopping potential for sodium will be:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 10.5 V
- 21.8 V
- 32.2 V
- 44.0 V✓
Correct answer
4.0 V
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