Which of the following nuclei is most stable based on its binding energy? 26
6
30
60
27
120 150 100
Number of continues
O A. Sodium (Na - 23)
O B. Zinc (Zn - 64)
C. lodine (1 - 127)
O D. Manganese (Mn - 55)

Amichelson interferometer operating at a 600 nm wavelength has a 3.02-cm-long glass cell in one arm. to begin, the air is pumped out of the cell and mirror m2 is adjusted to produce a bright spot at the center of the interference pattern. then a valve is opened and air is slowly admitted into the cell. the index of refraction of air at 1.00 atm pressure is 1.00028.how many bright-dark-bright fringe shifts are observed as the cell fills with air?