Question

the angle of ____ is between the incident wave and the normal line (perpendicular to the reflecting wall). answer options: select one of four incidence convergence refraction divergence

Explanation:

To solve this, we analyze the options:

• "incidence": The angle of incidence is defined as the angle between the incident wave (or ray) and the normal to the reflecting surface. This matches the description.
• "convergence": Refers to waves coming together, not related to the angle with the normal.
• "refraction": Involves the bending of waves when passing through a medium, and the angle of refraction is between the refracted wave and the normal, not the incident wave.
• "divergence": Refers to waves spreading out, not related to this angle.

Answer:

incidence