The maximum kinetic energy of photoelectrons emitted from a metal surface is 6 eV, when
monochromatic light of wavelength λ falls on it. When the same surface is illuminated with light of 2λ ,
the maximum kinetic energy of photoelectrons is 1.5 eV. Calculate the wavelength λ and also calculate
the maximum wavelength of incident radiation for which photoelectrons can be emitted by this surface.
Given h=6.625×10-34
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0
Answer:
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Answered by
0
Answer:
Given, the maximum kinetic energy: K
max
=4eV
If V
0
be the stopping potential, then K
max
=eV
0
⇒eV
0
=4eV
⇒V
0
=4V
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