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Flashcards in Optics Terms Deck (12):
0

Luminous

Products of its own light

1

Non luminous

Does not produce it's own light but reflects light to be seen (moon)

2

Transparent

Fully allows light to pass through. (Clear glass)

3

Translucent

Partially allows light to pass through (bathroom widow glass)

4

Opaque

Does not allow light to pass through. (Metal) (timber)

5

Scattering of light
What kind of light can reflect?

Smooth

6

Absorption/ reflection
Why is the wall yellow?

When the white light heats the wall, the yellow wave- length is reflected, all other wavelengths are absorbed.

7

Short sighted

Can't see FAR objects
Need to have a CONCAVE lens to correct sight

8

Long sighted

Can't see NEAR objects
Need to have a CONVEX lens to correct sight.

9

To have clear sight the image must

Be focused on the retina

10

A thick lens has a

Shorter focal length

11

A thin lens has

Longer focal length