Question

9. Calculate the binding energy for each nucleon of Silver-109. The units of the result must be in MeV / nucleon.

The Silver-109 atomic mass is 101 444.78 MeV / C2

5.A ray of light travels from a transparent material to air. The ray is refracted at an angle of 25o with respect to normal. The beam travels at a speed of 2.20 x 108 m / s in the material.

Determine the angle of incidence

Answer 1

Solution:

From the information given,

9.) ¹⁰⁹Ag₆₂

m = [(62*1.007276) + (47*1.008664)] - 108.9047558 = 0.9535642

E = mc² = 888.245 MeV

Binding energy per nucleon , = E/109 = 8.15 MeV/nucleon.

5.) First find the refractive index,

n = c/v = 3*10⁸/2.2*10⁸ = 1.364.

Using snells law,

n_airSin_i = nSin_r

Sin = 1.364Sin25^o

= 35.2^o.

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