Chapter 27, Problem 12MCQ

To determine

The changes that could produce a current through the circuit in which cathode is at a lower potential of $0\text{ V}$ and anode is at a higher potential of $10\text{ V}$, produces zero current due to photoelectrons, when light falls on the cathode.

a. Use more light source aimed at the same position on the cathode.

b. Increase the anode potential.

c. Decrease the anode potential.

d. Replace the metal of the cathode and the anode with a metal with a smaller work function.

e. Replace the metal of the cathode and the anode with a metal with a larger work function.

f. Use light with a smaller wavelength.

g. Use light with larger wavelength.

h. Decrease the distance between the cathode and anode.

i. increase the distance between the cathode and anode.