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Calculate the work function of a metal i...

Calculate the work function of a metal in eV, if its thresold wavelength `6800 overset@A` and `h=6.62 xx 10^(-27)`ergs.

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PUNJAB BOARD PREVIOUS YEAR PAPERS-Particle Nature of Radiation-Exercise
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  9. Light of wavelength 500 nm falls on a metal whose work function is 1.9...

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  12. Calculate the momentum of a photon of green light its frequency v=6 xx...

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  14. Work function of Na is 2.75 eV. DOes sodium show photoelectric emissio...

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  15. The work function of a certain metal is 4.2 eV. Will this metal give p...

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  18. Calculate the wavelength of a photon of energy 10^(10) eV (electron vo...

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