Ch44_p35 - 35(a We substitute =(2898 mK/T into the result of Problem 83 of Chapter 38 E =(1240 eVnm First we convert units 2898 mK = 2.898 106 nmK

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35. (a) We substitute λ = (2898 µ m·K)/ T into the result of Problem 83 of Chapter 38: E = (1240 eV·nm)/ λ . First, we convert units: 2898 m·K = 2.898 × 10 6 nm·K and 1240 eV·nm = 1.240 × 10 –3 MeV·nm. Hence, E T T = ×⋅ 1240 10 2 898 10 428 10 3 6 10 . . .. MeV nm nm K MeV K c h c h (b) The minimum energy required to create an electron-positron pair is twice the rest
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This note was uploaded on 01/23/2011 for the course PHYSICS 17029 taught by Professor Rebello,nobels during the Fall '10 term at Kansas State University.

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