Solve this: Q 15 The work function for tungsten and sodium are 4 5 eV and 2 3 eV - Physics - Dual Nature Of Radiation And Matter

Question

Solve this:
Q 15 The work function for tungsten and sodium are 4 5 eV and 2 3
eV respectively If the threshold wavelength for sodium is 5460
Å, the value of λ for tungsten is
(1) 5893 Å
(2) 10683 Å
(3) 2791 Å
(4) 528 Å

Vijay Shankar Yadav · Accepted Answer

Dear Student,
work function for tungusten is 4
5eVso threshold wave length=hcφ=6
63×3×10-264 5×1 6×10-19=2791A˙
Regard

Solve this: Q.15. The work function for tungsten and sodium are 4.5 eV and 2.3 eV respectively. If the threshold wavelength for sodium is 5460 Å, the value of λ for tungsten is (1) 5893 Å (2) 10683 Å (3) 2791 Å (4) 528 Å

Solve this:
Q.15. The work function for tungsten and sodium are 4.5 eV and 2.3 eV respectively. If the threshold wavelength for sodium is 5460 Å, the value of $λ$ for tungsten is
(1) 5893 Å
(2) 10683 Å
(3) 2791 Å
(4) 528 Å