Problem 5. (1 point) In a photoelectric experiment using a Caesium surface, you ir- radiate the surface with five different wavelengths and find five corresponding stopping potentials: # 2 Vo 1. 349nm 1.37V 2. 523nm 0.23V 3. 349nm 1.49V 4. 116nm 8.23V 5. 523nm 0.23V Plot a graph of the Stopping Potential versus Frequency of the light. What is the theoretical value of the slope of this plot? x10-15 J . s / C What value did you find? x 10-15 J . s/ C What is your value for the cutoff frequency? x 1015 Hz