Q4 The collisional stopping power of anelectron with kinetic energy T = 1.489 MeV inMercury (Z=80) is 21 MeV/cm. The totalstopping power of the electron in Mercury is:O 21.4 MeV/cmO 23.0 MeV/cmO 22.6 MeV/cmO 21.2 MeV/cmO 25.0 MeV/cmThe mean excitation energy of an element with Z-18 is:O 209.58 keVO 209.58 ev221.80 kev19.0 ev221.80 ev19.0 kevWhat is the maximum energy that a pion(mass = 140 MeV/c?) with kinetic energy of5.5 MeV can lose in a single collision with anelectron (mass = 0.511 MeV/c2)0.251 MeV21.920 MeV5.480 MeV0.080 MeV0.020 MeVA 0.767 MeV electron has a total stoppingpower of 10 MeV/cm in water. The timeneeded to stop the electron in water isapproximately:1.48 x10 12s1.48 x1010 s2.8 x1012 sO 2.8 x1010 s

Given, The kinetic energy of electrons is T=1.489MeV=1.489×106eV The atomic number of mercury is…

Answered: The collisional stopping power of an…

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The collisional stopping power of an electron with kinetic energy T = 1.489 MeV in Mercury (Z=80) is 21 MeV/cm. The total stopping power of the electron in Mercury is: 21.4 MeV/cm 23.0 MeV/cm 22.6 MeV/cm 21.2 MeV/cm 25.0 MeV/cm