Light Waves Flashcards

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1
Q

Light wave

A

Electromagnetic wave
Invisible to human eye (can see effects=sunburns)

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2
Q

Lights can be… (3)

A

Reflected
Refracted
Absorbed

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3
Q

Réflection

A

Rebounding of light when it hits another medium and bounces back from medium it came from

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4
Q

Specular reflection

A

Produces true mirror image
Parallel incoming rays are reflected back parallel

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5
Q

Diffuse réflection

A

Light rays are reflected in many different directions

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6
Q

Images in mirrors…(3)

A

Same size
Same distance in front and behind
Opposite orientation

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7
Q

Réfraction

A

Light changes direction when it passes from one medium to another

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8
Q

Converging lense

A

Causes parallel light rays to come together (thicker middle, thinner ends= eye contacts)

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9
Q

Diverging lense

A

Causes parallel light to move apart

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10
Q

Focal point

A

Converging lense

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11
Q

Diverging lense

A

Notes
Goes outwards

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12
Q

Real image

A

Can be projected onto screens ex; projector,camera

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13
Q

Virtual image

A

Cannot be captured on a reflective surface
Image found by extending reflected rays

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