Lens Equation Review

Front

What type of image is formed?

Back

real and inverted

Front

What type of lens is your eye?

Back

convex

Front

How does a concave lens differ from a convex lens?

Back

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

Front

Which represents a concave lens?

Back

B

Front

A ____ lens is sometimes called a converging lens because it_____

Back

convex, makes parallel light rays passing through it bend inward and meet (converge) at a spot just beyond the lens known as the focal point.

Front

In the thin lens equation, do represents

Back

Distance of the object from the lens

Front

An object is located 35.0 cm from a convex lens. The lens forms a real image at a distance of 15.0 cm. What is the focal length?

Back

10.5 cm

Front

A normal human eye has a focal length of about 0.023 m. If you look at the tip of a pencil, 0.553 m from your eye, how far is the image from the lens of your eye?

Back

0.024 m

Front

The focal length of the lens in your eye is about 0.015 m. If the object is 1 m from your eye, where is the image produced?

Back

0.0152 m

Front

If the distance of the image from the lens (di) is positive, the image is considered...

Back

Real