Solve this: Q 11 A metal surface of work function 1 07 eV is irradiated with light of wavelength - Physics - Dual Nature Of Radiation And Matter

Question

Solve this:
Q 11 A metal surface of work function 1 07 eV is irradiated with
light of wavelength 332 nm The retarding potential required to stop
the escape of photo electron is
(1) 4 81 V
(2) 3 74 V
(3) 2 65 V
(4) 1 07 V

Shobhit Mittal · Accepted Answer

Dear Student,

φ=1
07 eV, λ=332 nm maximum KE=hcλ-φ=4
136*10-15*3*108332*10-9-1 07=2
667 eVvoltage required to stope the electron V=2
667eVe=2 667 Voption 3Regards

Solve this: Q.11. A metal surface of work function 1.07 eV is irradiated with light of wavelength 332 nm. The retarding potential required to stop the escape of photo electron is (1) 4.81 V (2) 3.74 V (3) 2.65 V (4) 1.07 V

Solve this:
Q.11. A metal surface of work function 1.07 eV is irradiated with light of wavelength 332 nm. The retarding potential required to stop the escape of photo electron is
(1) 4.81 V
(2) 3.74 V
(3) 2.65 V
(4) 1.07 V