Question

How can the properties of metals can be modified?​

Answer 1

Explanation:

Many structural metals undergo some special treatment to modify their properties so that they will perform better for their intended use. This treatment can include mechanical working, such as rolling or forging, alloying and/or thermal treatments. ... Further, many aluminum alloys are strengthened by heat treatment.

Answer 2

Answer:

State the rules which govern the propagation of a ray of light when it goes from

one transparent medium to another.