When a white light falls on a soap bubble, colors lines appear on that bubble, what is the cause of this phenomena? A)The refraction of light .
B)The interference between the reflected rays.
C)The changing of the light speed.
D)The colors in the soap solution.

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?

Is there a point between a 10 nc charge and a 20 nc charge at which the electric field is zero?

Why is a noble gas different from other elements