CH101-Assignment 3

CH101-Assignment 3 - 1. You may need to consult Figure 2.2...

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1. You may need to consult Figure 2.2 in your textbook to answer this question. a) Which photon has the shortest wavelength? Infrared Yellow visible light Microwave Radio wave Ultraviolet Red visible light b) Which photon has the highest frequency? X-ray Infrared Red visible light Microwave Ultraviolet Yellow visible light c) Which photon has the lowest energy? X-ray Infrared Ultraviolet Microwave Red visible light Yellow visible light d) Which photon has the highest energy? 600 nm 800 nm 200 nm 400 nm
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2. - In the photoelectric effect for a given material, light at energy less than the threshold energy is unable to remove an electron from the material, whereas light at energy greater than the threshold energy can result in ejection of an electron. The threshold frequency for the ejection of an electron from iron is 1.1 10 15 s -1 . Indicate whether each of the following photons has enough energy to eject an electron from an iron atom. You can use a calculator or you can refer to Figure 2.2
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CH101-Assignment 3 - 1. You may need to consult Figure 2.2...

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