engineering recuitment BARC Stipendiary Trainee Category I 2023 Mock Test Physics Dual Nature: Photon and Matter Waves
If the threshold wavelength for photoelectric effect on sodium metal is 5000 A° then find its work function.
1
15 J
2
4 × 10-19 J
3
4 × 10-14 J
4
4 × 10-22 J