Answer: Selectedmetal; copper Ecoceduce'. Initially.r for the selected metal we have to find threshold wavelength for a selected intensity.r {I'll use 100%) so that we can work below this wavelength. Then I'll change the intensity.r ofthe light so that I can see the effect of changing intensity.r on the current produce i.e. electron liberated. Then I'll observe various relationships using graph options. 3. Based on your chosen metal. answer the following questions: a. At what wavelengths was it rst possible to remove electrons? Answer: 258-202 nm at 100% intensity of light. b. What wavelengths were most effective? Answer: 141144 nm at 100% intensity as it gives highest current value at these wavelengths. c. What does intensity.f change? Answer: Intensity changes number of photons hitting the surface per unit time hence effects electrons liberation