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प्रश्न
Two metals A and B have work functions 4 eV and 6 eV respectively. Which metal has a lower threshold wavelength for photoelectric effect?
एक पंक्ति में उत्तर
योग
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उत्तर
`lambda = "hc"/"w"`
∴ 6eV. Thus, metal B has lower threshold wavelength.
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