Question

How are different materials grouped depending on the transparency, explain with two examples for each group

Answer 1

Materials can be grouped into :

Transparent materials — They allow light to pass through them. Examples are glass and water.

Translucent materials — They allow little light to pass through. Examples are bitter paper and ground glass.

Opaque materials — They don't allow light to pass through them. They include stone and wood.

Answer 2

Answer:

materials are grouped by transparent, transculent and opaque