White light passes through a diffraction grating and forms rainbow patterns on a screen behind the grating. For each rainbow,
A. The red side is on the right, the violet side on the left.
B. The red side is on the left, the violet side on the right.
C. The red side is closest to the center of the screen, the violet side is farthest from the center.
D. The red side is farthest from the center of the screen, the violet side is closest to the center.

The answer is a) The red side is on the right, the violet side on the left and d) The red side is farthest from the center of the screen, the violet side is closest to the center

A rainbow drawing is attached to the attached file.

Explanation:

A rainbow is an optical and meteorological phenomenon that consists of the appearance of a multicolored arc of light, originated when sunlight is broken down into the visible spectrum. It is an arc composed of an arc of colors, with red towards the outside (angle of incidence of 42°) and violet towards the inside (angle of incidence of 40°).