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3:27 PM Thu 28 Apr T Question 1 (a) What is the photoelectric effect? The photoelectric effect the son of elect from the surface of a metal by electromagnetic radiation of a suitable (3 marks) (b) The use of solar panels, like those shown below, has become increasingly popular. When electromagnetic magnetic radiation falls on the semiconductor material in the solar panel, the photoelectric effect occurs. (i) Using your knowledge of the electromagnetic spectrum, determine the highest frequency of visible light that falls on the solar panel? (4 marks) (ii) The work function of the semiconducting material is approximately 4.7 eV. Calculate the maximum kinetic energy of an emitted electron when radiation of frequency 1.5 x 10¹5 Hz is incident on the semiconducting material. (5 marks) (c) In 1921, Albert Einstein was awarded the Nobel Prize in Physics for his explanation of the photoelectric effect. In point form, briefly outline why his explanation was contrary to the commonly held belief that shining light of any wavelength on a metal surface for a long period of time would produce a photoelectric effect. (3 marks) 62% +: 0