LENS

A concave lens is _______ at the center and _____light.

• thinner; diverges

• thinner; converges

• thicker; diverges

• thicker; converges

The image formed by a concave lens is always ____.

• virtual and inverted

• virtual and upright

• real and inverted

• real and upright

Which length is the focal length of the lens shown in the diagram?

• A

• B

• C

• D

The diagram shows rays of light passing through a converging lens. Which labelled arrow represents the focal length of the lens?

• A

• B

• C

• D

If an object is placed between a convex lens and its focal point, the image formed is __________.

• real and upright

• real and inverted

• virtual and upright

• virtual and inverted

A convex lens has focal length f. If an object is located very far away from the lens, the image will be formed at a distance _______from the lens.

• f

• 2f

• between f and 2 f

• infinity

An object is viewed through a converging lens. The diagram below shows the paths of two rays from the top of the object to an eye. How does the image compare with the object?

• Larger and inverted

• Larger and upright

• Smaller and inverted

• Smaller and upright

An object is viewed through a concave lens. What

is the correct description of the image formed?

• Real, inverted, magnified

• Real, upright, diminished

• Virtual, inverted, magnified

• Virtual, upright, diminished

An object is placed in front of a diverging lens as shown on the scale diagram. The principal focus F is marked on each side of the lens. At which position will the image be formed?

• A

• B

• C

• D

The ray diagram shows two rays from a point on an object placed in front of a diverging lens. What are the properties of the image produced?

• Real and larger than the object

• Real and smaller than the object

• Virtual and larger than the object

• Virtual and smaller than the object