TS EAMCET · Physics · Nuclear Physics
A beam of photons with an energy of strike a metal plate. The photoelectrons are emitted with maximum velocity of . The work function of the metal is
(Assume mass of electron and Charge of electron )
- A
- B
- C
- D
Answer & Solution
Correct Answer
(C)
Step-by-step Solution
Detailed explanation
Given: Energy of beam of photons E=10.5 eV, Velocity of photoelectrons v=1.6×106 m s-1, The work function is given as ϕ=E-K.Emax Now, the maximum kinetic energy K.E=12mv2=12×9×10-31×1.6×10-62=7.2 eV Thus, the work function is…
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