Ultraviolet light of wavelength 2271A∘ from a 100W mercury source 2 irradiates a photo-cell made...

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Ultraviolet light of wavelength 2271A∘ from a 100W mercury source
2 irradiates a photo-cell made of molybdenum metal. If the stopping
- potential is 1.3V, estimate the work function of the metal. How would the photo-cell respond to a high intensity ~105 Wm-2 red light of wavelength 6328 A produced by a He-Ne laser?

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