Question

what obtained from river is translates and when it is charged with a lump of alum it becomes transparent how does it happen explain​

Answer 1

Answer:

Hey guys

Explanation:

Opaque materials are those objects which does not allow light to pass through them. Example: - Wooden board, umbrella.

Transparent materials are those objects which allow light to pass through them in straight lines. As a result we can see the objects clearly. Example: - Plane mirror, water.

MARK ME AS A BRANILIST