Photo electric effect happens only if energy of electrons is greater than threshold energy, i.e the work function. Work function depends on material. ∴ photo electric emission on depends. on nature of surface.
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Q1
Photoelectrons are emitted by making green light incident on a metallic surface. Which of the following lights can start photoelectric emission?
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Q2
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(IIT-JEE, 1986)
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Q5
State True or False.
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