Question

which line shows how the main beam would reflect? line number 3 line number 4 line number 1 line number 2

Explanation:

Step1: Recall the law of reflection

The law of reflection states that the angle of incidence is equal to the angle of reflection.

Step2: Analyze each line

• Line 1: Does not follow the law of reflection.
• Line 2: Does not follow the law of reflection.
• Line 3: Is the normal line, not the reflected ray.
• Line 4: Follows the law of reflection as the angle between the main beam (incident ray) and the normal is equal to the angle between line 4 (reflected ray) and the normal.

Answer:

Line number 4