A laser beam passes through a thin slit. When the pattern is viewed on a screen 1.25 m past the slit, you observe that the fifth-order dark fringes occur at \pm 2.41 cm from the central bright fringe. The entire experiment is now performed within a liquid, and you observe that each of the fifth order dark fringes is 0.790 cm closer to the sentral fringe than it was in air. What is the index of refraction of this liquid?

c)as speed changes, wavelength and frequency change.

everything changes!

more than, less

less than, more

when two balls of the different masses are dropped from equal height, they reach the ground at the same time .this is because they experience the same acceleration.

the acceleration is independent of mass.

thus when they are dropped they will always maintain the same velocity and travel the same distance (neglect air resistance of course) at the same time.