Question

When a certain photosensistive surface is illuminated with monochromatic light of frequency v, the stopping potential for the photo current is-$V_0/2.$ When the surface frequency v/2, the stopping potential is -$V_0.$ The threshold frequency for photoelectric emission is

• A. $\frac{5v}{3}$
• B. $2v$
• C. $\frac{4}{3}v$
• D. $\frac{3v}{2}$

Answer 1

The correct option is D $\frac{3v}{2}$

The correct answer should be option d.