Question

In photoelectric effect, the curve between photoelectric current and anode potential $V$ (for different frequencies) is shown in figure, then

• A. $v_{1} > v_{2} > v_{3}$
• B. $v_{1} < v_{2} < v_{3}$
• C. $v_{1}=v_{2}=v_{3}$
• D. $v_{1} > v_{2} < v_{3}$

Answer 1

Answer: (B)

As is evident from the graph $v_{1} < v_{2} < v_{3}, V_{1}, V_{2}, V_{3}$ in this case are the stopping potential.