Calculate the maximum current that may be allowed to flow through a 1N755 Zener diode at device temperatures of 50oC and 100 oC. 1N755 Zener diode has VZ = 7.5V, PD = 400 mW at 50oC, and

the derating factor = 3.2 mW/ oC.​

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?