JEE Main & Advanced
Physics
Photo Electric Effect, X- Rays & Matter Waves
Question Bank
Graphical Questions
question_answer
Figure represents a graph of kinetic energy (K) of photoelectrons (in eV) and frequency (v) for a metal used as cathode in photoelectric experiment. The work function of metal is
A) 1 eV
B) 1.5 eV
C) 2 eV
D) 3 eV
Correct Answer:
C
Solution :
Work function is the intercept on K.E. axis i.e. 2eV.