8.03: Lenses: Concave and Convex Lenses Revision

How does a concave lens differ from a convex lens?

• A convex lens is another way to describe a plane mirror; a concave lens is curved

• A concave lens is curved inward on both sides; a convex lens is on only one side

• A convex lens has a thick center and thin edges, a concave lens has a thin center and thicker edges

• A convex lens has a thin center and thick edges. a concave lens has a thick center and thinner edges

A diverging lens is also known as a ____lens.

• refracted
• diffracted
• convex
• concave

A converging lens is also known as a ____ lens.

• convex
• concave
• double
• refracted

a real image is produced by...

• the apparent intersection and can be projected on a screen

• the actual intersection of rays and cannot be projected on a screen

• the apparent intersection of rays and cannot be projected on a screen

• the actual intersection of rays and can be projected on a screen

A virtual image is formed by...

• the actual intersection of light rays, cannot be formed on a screen

• the apparent intersection of light rays, cannot be formed on a screen

• the actual intersection of light rays, can be formed on a screen

• the apparent intersection of light rays, can be formed on a screen

True or false: the image formed by a convex (converging) lens is always a real image

• True

• False

What kind of image is always formed in a diverging (concave) lens?

• Virtual image

• Real image

When the object is placed outside the focus of a converging (convex) lens the image formed is a...

• real image

• virtual image

When an object is placed on the focal point in front of a convex lens, the image produced is ___.

• real, reduced, and inverted
• real, enlarged, and inverted
• real, true, and inverted
• There is no image

When an object is placed between the focus and the convex lens, the image produced is ___.

• real, diminished, and inverted

• real, magnified, and inverted

• virtual, magnified, and upright

• virtual, diminished, and upright