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What is the work function of the metal if a light of wavelength 4000 ∘A generates photoelectrons of velocity 6×105 ms−1 from it? (Mass of electron = 9×10−31 kg, Velocity of light = 3×108 ms−1, Plank's constant = 6.626×10−34 Js, Charge of electron = 1.6×10−19 J eV−1) |
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Answer» What is the work function of the metal if a light of wavelength 4000 ∘A generates photoelectrons of velocity 6×105 ms−1 from it? |
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