Question

Coloring of an illustration of diagram with parallel lines is known as​

Answer 1

Answer:

Hatching (hachure in French) is an artistic technique used to create tonal or shading effects by drawing (or painting or scribing) closely spaced parallel lines

Answer 2

Explanation:

Refraction is the change in direction of a wave passing from one medium to another caused by its change in speed. The refraction of light when it passes from a fast medium to a slow medium bends the light ray toward the normal to the boundary between the two media. The amount of bending depends on the indices of refraction of the two media and is described quantitatively by Snell's Law.