Answer to Question 6

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(a) 

 

(b) E = 0.16 106 1.6 10-19 = 2.56 10-14 J

l = hc E = (6.63 10-34 3 108) 2.56 10-14 = 7.8 10-12 m

 

(c) There are three possible modes:

  • 0.48 MeV;

  • 0.27 MeV;

  • 0.21 MeV (= 0.48 - 0.27)

  • 1 MeV = 1.6 10-13 J

Energy of 0.48 MeV photon = 0.48 1.6 10-13 = 7.68 10-14 J

Energy of 0.27 MeV photon = 0.27 1.6 10-13 = 4.32 10-14 J

Energy of 0.21 MeV photon = 0.21 1.6 10-13 = 3.36 10-14 J