Concave Mirror Ray Behavior

The video tutorial explains how to use ray diagrams to find images in concave mirrors. It covers key points such as the focal point, center of curvature, and vertex. The tutorial demonstrates how to locate the image using parallel and focal rays, and verifies the location with a third ray. It concludes with a description of the image's properties, including its orientation, reality, and magnification.

What is the focal point in a concave mirror?

• The point where the mirror's axis intersects the surface.

• The point where the mirror's curvature is the greatest.

• The center of the mirror's surface.

• The point where light rays parallel to the principal axis converge.

What is the center of curvature in a concave mirror?

• The point where the principal axis meets the mirror.

• The point where all reflected rays converge.

• The center of the sphere from which the mirror is a part.

• The point where the mirror's surface is the flattest.

What is the significance of the vertex in a concave mirror?

• It is the point where all light rays converge.

• It is the point where the principal axis meets the mirror.

• It is the point where the mirror's curvature is the greatest.

• It is the center of the mirror's surface.

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

• It reflects through the focal point.

• It passes through the center of curvature.

• It reflects back parallel to the axis.

• It diverges away from the mirror.

How does a focal ray behave when it strikes a concave mirror?

• It diverges away from the mirror.

• It passes through the center of curvature.

• It reflects parallel to the principal axis.

• It reflects back through the focal point.

What is the purpose of the third ray in a ray diagram for a concave mirror?

• To verify the location of the image.

• To measure the focal length of the mirror.

• To determine the size of the object.

• To calculate the magnification of the image.

What happens to a ray aimed at the vertex of a concave mirror?

• It passes through the focal point.

• It reflects back parallel to the principal axis.

• It diverges away from the mirror.

• It reflects at an angle equal to the angle of incidence.

What is the attitude of the image formed by a concave mirror when the object is beyond the center of curvature?

• Inverted

• Magnified

• Upright

• Virtual

What type of image is formed when the rays converge at a point?

• Virtual

• Real

• Magnified

• Diminished

How is magnification calculated in a concave mirror?

• By multiplying the object distance by the image distance.

• By dividing the focal length by the object distance.

• By adding the object height to the image height.

• By dividing the image height by the object height.