Usted / el partido de fútbol usted va al partido de fútbol. question 1 with 1 blankyo / la biblioteca question 2 with 1 blanknosotros / la piscina question 3 with 1 blankmis primas / el gimnasio question 4 with 1 blanktú / de excursión question 5 with 1 blankustedes / el parque municipal question 6 with 1 blankalejandro / el museo de ciencias

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?