Question

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Answer 1

Answer:

Paleolithic Age to Neolithic Age To Metal Age Are Pre-Historic Ages.. Now Historic Age: Ancient Age to Early Modern Age to Middle Age to Modern Age...

Explanation:

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Answer 2

Answer:

4. State the laws of reflection.

Soln:

The law of reflection states that

a) The angle of reflection and the angle of incidence both are always equal to one another.

b) The reflected ray, the incident ray, and the normal to the reflective surface at the point of incidence all come on

the same plane.