PHYS 1020 Lecture Notes - Lecture 13: Electronvolt
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The mossbauer effect was discovered using the decay of 0. 12939 m ev second excited state f 191 ri o is given below with values. Lifetime of the isomer (t) = 0. 13 ns = 0. 13 x 10 s . The mathematical expression for the computation of width of the second level shown below: For the given second excited state width is related as: t = . = width of the level h / 2 = h = planks constant. " answer : the width of the second level is equal to 5. 07 x 10 e v ". The mathematical expression to compute the recoil energy of a free 191 atom that emits 0. 12939 m ev ri proton is given by. E = recoil energy of a free 191 atom ev. M = mass of 191 = 191 u ri. " answer : the recoil energy of a free 191 atom is equal to 4. 66 x 10 ev "
