Question

1. associez un numéro inscrit dans la figure ci - dessous à chacun des termes suivants : angle dincidence ($\theta_{i}$), normale, rayon réfracté, angle de réflexion ($\theta_{r}$), rayon incident, angle de réfraction ($\theta_{r}$), rayon réfléchi, dioptre.

Explanation:

• Angle of incidence (\(\theta_i\)): The angle between the incident ray and the normal. In the figure, this is represented by the number \(6\).
• Normal: A line perpendicular to the surface at the point of incidence. In the figure, this is represented by the number \(2\).
• Refracted ray: The ray that bends as it enters a new medium. In the figure, this is represented by the number \(10\).
• Angle of reflection (\(\theta_r\)): The angle between the reflected ray and the normal. In the figure, this is represented by the number \(7\).
• Incident ray: The ray that strikes the surface. In the figure, this is represented by the number \(1\).
• Angle of refraction (\(\theta_R\)): The angle between the refracted ray and the normal. In the figure, this is represented by the number \(11\).
• Reflected ray: The ray that bounces off the surface. In the figure, this is represented by the number \(3\).
• Dioptre: The surface that separates two media. In the figure, this is represented by the number \(12\).

Answer:

• Angle of incidence (\(\theta_i\)): \(6\)
• Normal: \(2\)
• Refracted ray: \(10\)
• Angle of reflection (\(\theta_r\)): \(7\)
• Incident ray: \(1\)
• Angle of refraction (\(\theta_R\)): \(11\)
• Reflected ray: \(3\)
• Dioptre: \(12\)