Questions
In a photoemissive cell with exciting wavelength λ , the fastest electron has speed v. If the exciting wavelength is changed to
, the speed of the fastest emitted electron will be
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Correct option is D
When wavelength is λ and velocity is v, then ........(i)When wavelength is and velocity is v’ then .......(ii)Divide equation (ii) by (i), we getSimilar Questions
The maximum energy of photoelectrons emitted in a photoelectric cells is measured using lights of various frequencies v. The graph in shows how varies with v. The slope of the graph is equal to
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