Thin converging lens

What is the scientific name of length f in the diagram?

• Focal length

• Lens length

• Object distance

• Image

a real image...

• is produced by virtual rays and can be projected on a screen
• is produced by real rays and cannot be projected on a screen
• is produced by virtual images and cannot be projected on a screen
• is produced by real rays and can be projected on a screen

What are the characteristics of the image produced?

• virtual

• enlarged

• inverted

• upright

• real

The diagram shows an object between P and F1 on the principal axis of a converging lens. The principal foci of the lens are at F1 and F2.

Where is the image formed by the lens?

• A

• B

• C

• D

Which is the focal point?

• A

• B

• C

• D

Name the lens in the diagram.

• Thin converging lens

• Thin diverging lens

Name the horizontal line as shown in the diagram.

• Optical axis

• Optical line

• Principal axis

• Principal line

Name the lens feature labelled as C in the diagram.

• Centre

• Midpoint

• Midway

• Optical centre

What type of image is formed?

• virtual and inverted

• virtual and upright

• real and upright

• real and inverted

The diagram shows the image made by a converging lens.

Which statement describes the image formed?

• diminished and inverted

• diminished and upright

• enlarged and inverted

• enlarged and upright