What do you call the angle at which waves strike a wall?

• Correct Answer: angle of incidence
• incidence impact
• rotation of incidence
• angle of impact

Explanation: Waves strike a wall at an angle, called the angle of incidence. The waves are reflected at the same angle, called the angle of reflection, but in a different direction. Both angles are measured relative to a line that is perpendicular to the wall.

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