The simulation can be accessed at: https://phet.colorado.edu/sims/cheerpi/photoelectric/latest/ photoelectric.html?simulation=photoelectric 1. Choose your target metal to be Sodium, then set its Intensity/ Number of photons to 100%. Ensure that the battery voltage is 0.00V. By adjusting the wavelength of the light, find the cut- off (lowest threshold) frequency. Answer: wavelength = now using the speed of light find the fre Answer: v=_3 x 10^8 m/s 2. By only changing the target metal, which metal has a cut-off frequency of 1.0381x1015Hz? remember that Velocity = Frequency x Wavelength and that the speed of light = 3.0 x 108 m/s) First, what wavelength has the given frequency? Answer: Next find the metal that corresponds to this wavelength. Answer: Metal is 3. Choose your target metal to be Copper, then set its Intensity/ Number of photons to 100%. Ensure that the battery voltage is 0.00V. By adjusting the wavelength of the light, find the cut- off (lowest threshold) frequency. Answer: wavelength = Now, using the speed of light, find the frequency Answer: V= 4. (a) Using copper as your metal surface, what is the current through the circuit for ultra-violet light of wavelength 200nm and with only 50% intensity? Answer: / = b) What is the current when the intensity is 100%? Answer: / = _ 5. Explain the difference in the intensities. 5. (a) Using copper as your metal surface, what is the current through the circuit for green light with a wavelength of 530nm, with only 50% intensity? Answer: / =b) What is the current when the intensity is 100%? Answer: I = Why is this the case? (Think about the cut015' frequency (f0)). Using calcium as your target metal, set an ultraviolet wavelength of 130nm. What is the current through the circuit? Plot a graph of \"Electron energy vs light frequency\" and take a screenshot of it. + Screenshot -)