Lenses and Refraction

Name the lens in the diagram.

• Thin converging lens

• Thin diverging lens

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

• Focal length

• Lens length

• Object distance

• Image

An object is placed 5 cm from a converging lens with a focal length of 3 cm. What type of image is produced?

• Real, upright and diminished

• Real, inverted and magnified

• Virtual, upright and magnified

• Virtual, inverted and diminished

A student uses a converging lens with a focal length of 20 cm to produce an enlarged virtual image of a scale she wishes to read accurately. What is a suitable distance between the scale and the lens?

• 16 cm

• 24 cm

• 40 cm

• 48 cm

Where should an object be placed so that a real, inverted & ensmallened image is produced by a lens with the given focal point at F?

• A

• B

• C

• D

Where should an object be placed so that a real, inverted and same size image is produced by a lens with the given focal point at F?

• A

• B

• C

• D

The above lens is a type of ___.

• diverging lens

• converging lens

• divergent lens

• convergent lens

Which lens represents the path light takes through a diverging lens?

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• 
• 
• 

Tags

NGSS.MS-PS4-2

Which figure represents the path light takes through a converging lens?

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• 
• 
• 

Tags

NGSS.MS-PS4-2

A lens that is thicker in the middle than on the outside is called ___.

• diverging

• concave

• converging

• achromatic