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Ultraviolet light of wavelength 2271Å fr...

Ultraviolet light of wavelength `2271Å` from a 100W mercury source irradiates a photocell made of molybdenum metal. If the stopping potential is 1.3V, estimate the work function of the metal. How would the photocell respond to a high intensity `(~10^(5)Wm^(-2))` red light of wave length `6328Å` produced by a He-Ne laser?

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MODERN PUBLICATION-DUAL NATURE OF RADIATION AND MATTER -Revision Exercises (Numerical Problems)
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  8. Photons of energy 3.55 eV each are incident on a metal surface whose w...

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  9. (i) Monochromatic light of frequency 6.0xx10^(14) Hz is produced by a ...

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  10. A photon electric surface has work function 2 eV. What is the maximum ...

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  11. (a) A 100 W sodium Lamp radiates energy uniformly in all directions. T...

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  12. Ultraviolet light of wavelength 2271Å from a 100W mercury source irrad...

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  15. A monochromatic source of light operating at 200W emits 4xx10^(-20) ph...

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