ExamPlay Dark Logo
Zalogować się

JAMB - Physics (1995 - No. 38)

A light of energy 5eV falls on a metal and the electrons with a maximum kinetic energy of 2eV are ejected. The work function of the metal is
0.4eV
2.5eV
3.0eV
7.0eV

Wyjaśnienie

Work function = 5 - 2

= 3eV

Uwagi (0)

Reklama