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Umme Asked a Question
August 10, 2020 6:23 pmpts 30 pts
In a photo-electric set up, a point source of light of power 1.6 x 10 w emits mono-energetic photons of energy5.0 eV. The source is placed at a distance of 0.8m from the centre of stationary metallic sphere of work function 2.0 eV and radius 2 x 10*m. m. The efficiency of photoelectron emission is one for every 108incident photons. Assume that sphere is initiallv neutral and photo-electrons are instantly swe 4/6 after emission. (a) Determine the number of away after emission (b) Determine the ratio of photo-clectrons emitted. (c) it is observed that photo electron emission stops after a certain timet, the light source is switched on, why?
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  • Chandra dhawan Best Answer
    see attachment dear it will help you
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  • Mahak thankyou
    see attached this type of question
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  • Chandra dhawan
    see attachment example..it will help you
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    Chandra dhawan
    see attachment
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