Mica is an example of _________ .

Mica is chemically

Mica is chemically :

Mica is known for its

In a Young's double-slit experiment,a thin sheet of mica is placed over one of the two slits.As a result,the center of the fringe pattern (on the screen) shifts by an amount corresponding to 30 dark bands. The wavelength of the light in this experiment is 480 nm and the refractive index of the mica is 1.60 .The mica thickness is (approximately):

Mica is found in which one of the following pairs of rocks?

When a mica plate of thickness 0.1 mm is introduced in one of the interfering beams, the central fringe is displaced by a distance equal to 10 fringes. If the wavelength of the light is 6000 Å , the refractive index of the mica is