Jorge has been feeling sluggish and having trouble concentrating in class. which of these options would him regain focus in a healthy way? a)going to sleep earlier b)spending time with friends c)drinking more caffeine d)rearranging his class schedule

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?