Questions
In a photo electric experiment, a metal surface is illuminated by a light of wavelength which is just sufficient to cause photo electric emission. If metal surface is illuminated by a light of wavelength , the stopping potential will be
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Correct option is D
If ϕ be the work function of the metal surface, then hcλ=ϕIn the second case, hcλ/2=ϕ+eV0⇒V0=hceλSimilar Questions
The work functions of three metals A,B and C are WA, WB and WC respectively. They are in the decreasing order. The correct graph between stopping potential V0 and frequency V of incident radiation is
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