Calculate the binding energy per nucleon of nickel where A= 58 (nucleon number)

Question

Calculate the binding energy per nucleon of nickel where A= 58 (nucleon number) and Z = atomic number = 28. Nickel has an atomic mass of 58.6924 units. (Hydrogen mass = 0078mu. Neutron mass = 1,0087u) A concave mirror has a radius of 84 cm. An object is located 50 cm in front of the mirror. Where is the image distance? Calculate the image distance and also describe in a ray diagram. Sequel to previous problem. If the object is 10cm high, how large is the image? Same as problem# 28 except instead of a mirror, it is a DIVERGENT lens, which has a focal length of 84cm. An object is located 50cm in front of the lens. Where is the image distance? Calculate the image distance and also describe in a ray diagram.

Explanation / Answer

35)

Binding energy is given by = Mass of protons + Mass of neutrons - Mass of atom

= (28*1.0078u + (58-28)*1.0087u -58.6924u) c^2 (931.5MeV/uc^2)

= - 198.41 MeV

Thus the binding energy per nucleon is = -198.41/58 = --3.42 MeV

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