Reflection and Ray Behavior in Mirrors

The video tutorial explains the interaction of rays with poles and spherical mirrors. It covers the concept of normal lines and centers of curvature, emphasizing how rays reflect off surfaces. The laws of reflection are discussed, highlighting their applicability to spherical mirrors. The tutorial also details the angles of incidence and reflection, ensuring they are equal. Finally, it summarizes the behavior of rays in various scenarios, such as when they are parallel to the principal axis or pass through the focus.

What happens when a ray hits the pole of a mirror?

• It refracts through the mirror.

• It gets absorbed by the mirror.

• It reflects back at the same angle of incidence.

• It passes through the center of curvature.

How do you determine the normal on a concave or convex surface?

• By using a protractor to measure angles.

• By drawing a line parallel to the principal axis.

• By joining the pole and the center of curvature.

• By drawing a perpendicular line to the surface.

According to the laws of reflection, what is true for a ray hitting the pole of a spherical mirror?

• The angle of incidence is less than the angle of reflection.

• The angle of incidence is greater than the angle of reflection.

• The angle of incidence equals the angle of reflection.

• The ray does not reflect.

What happens to a ray parallel to the principal axis when it hits a concave mirror?

• It reflects back parallel to the principal axis.

• It passes through the center of curvature.

• It refracts through the mirror.

• It reflects through the focus.

If a ray passes through the focus of a concave mirror, how does it reflect?

• It does not reflect.

• It reflects through the center of curvature.

• It reflects parallel to the principal axis.

• It reflects back through the focus.

What is the path of a ray that passes through the center of curvature of a concave mirror?

• It reflects back parallel to the principal axis.

• It reflects through the focus.

• It retraces its path.

• It refracts through the mirror.