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Light and Optics Quiz

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Questions and Answers

Which one of these is the focal length of a lens with a 2D capacity?

30 cm

50 cm

40 cm (correct)

20 cm

If the focal length of an upright lens is 50 cm, what is its power?

+2D

-5D

-2D

+5D (correct)

What is the focal length of a lens with a power of -2D?

40 cm

30 cm (correct)

20 cm

50 cm

Which one of these is NOT a characteristic of light rays?

<p>Absorption</p> Signup and view all the answers

What is the unit of measurement for focal length?

<p>Centimeters</p> Signup and view all the answers

Light and Optics Quiz

Choose a study mode

Podcast

Questions and Answers

Which one of these is the focal length of a lens with a 2D capacity?

If the focal length of an upright lens is 50 cm, what is its power?

What is the focal length of a lens with a power of -2D?

Which one of these is NOT a characteristic of light rays?

What is the unit of measurement for focal length?

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