What is the initial position of the object? a. 2m b. 4m c. 6m d. 8m e. 10 m

what is the velocity of the object?

a. -10 m/s b. -5 m/s c. 0 m/s d. 5 m/s e. 10 m/s

which of the following is true?

a. the object increase its velocity.
b. the object decrease its velocity.
c. the objects velocity stays unchanged.
d. the object stays at rest.
e. more information is required.

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?