Dual Nature of Radiation and Matter · Photoelectric effect
For a certain metal, when monochromatic light of wavelength is incident, the stopping potential for photoelectrons is . When the same metal is illuminated by light of wavelength , then the stopping potential becomes . The threshold wavelength for photoelectric emission for the given metal is . The value of is .
- (1)1
- (2)4
- (3)2
- (4)3
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See the full 2 Apr 2026, Shift 1 paper
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