Lenses and Mirrors

Front

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

Back

A real and inverted image.

Front

What is the definition of a virtual image?

Back

An image that cannot be projected onto a screen and is formed by rays that appear to diverge from a point.

Front

What is the difference between a concave lens and a convex lens?

Back

A concave lens diverges light rays, while a convex lens converges light rays.

Front

What happens to the size of the image when an object is placed closer to a convex lens than its focal point?

Back

The image is larger and virtual.

Front

What is the focal point of a lens or mirror?

Back

The point where parallel rays of light either converge (convex) or appear to diverge (concave).

Front

What is the ray that strikes the surface of a lens or mirror called?

Back

Incident ray.

Front

What type of image is formed by a convex mirror?

Back

A virtual, upright, and smaller image.

Front

How does the distance of the object from a concave mirror affect the image formed?

Back

As the object moves closer to the mirror, the image can become larger and inverted until it reaches the focal point.

Front

What is the relationship between the object distance and the image distance in a lens?

Back

The lens formula relates object distance (u), image distance (v), and focal length (f) as 1/f = 1/v + 1/u.

Front

What is the significance of the principal axis in lens and mirror diagrams?

Back

The principal axis is the line that passes through the center of the lens or mirror and is perpendicular to its surface.