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AP Physics Light

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21 cards

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Section 1

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Wave Theory

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Physics

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Last updated

6 years ago

Date created

Mar 1, 2020

Cards (21)

Section 1

(21 cards)

Wave Theory

Front

Explains: Interference, Diffraction, Reflection, Refraction Does not explain: Propagation because waves require a medium

Back

Refraction

Front

"Bending" of light as it enters a new medium

Back

Diffraction

Front

Spreading of light through an opening (does not require a change in the medium)

Back

Describing materials with light

Front

Translucent - You can see light behind it but it's diffused so objects cannot be identified Transparent - Light passes through readily Opaque - Light does not pass through

Back

Colors of visible spectrum in order of decreasing frequency?

Front

Violet - Red (v i b g y o r)

Back

Luminous

Front

Emits light (is the source of the light)

Back

Primary colors of light

Front

Red Blue Green (Makes up white)

Back

Illuminated

Front

Reflects light (NOT the source of the light)

Back

Index of refraction

Front

Ratio of the speed of light in a vacuum to the speed of light in material n = c/v

Back

Primary colors of pigment

Front

Cyan Yellow Magenta (Makes up black)

Back

Snell's Law

Front

a formula used to describe the relationship between the angles of incidence and refraction, when referring to light or other waves passing through a boundary between two different isotropic media, such as water, glass, or air.

Back

Primary colors that make up secondary colors

Front

Magenta - Red Blue Cyan - Blue Green Yellow - Green Red

Back

Threshhold frequency

Front

the minimum frequency of incident light which can cause photo electric emission i.e. this frequency is just able to eject electrons with out giving them additional energy.

Back

Particle Theory

Front

Explains: Propagation, reflection Does not explain: Refraction because it required light to move faster in water but it moves SLOWER

Back

Known index of refractions

Front

Water - 1.33 Air - 1.0003 Vacuum - 1.00

Back

Electromagnetic Wave Theory

Front

Explains: Heat, light, and electricity are transmitted through free space at the speed of light

Back

Can travel through empty space

Front

Light wave

Back

Law of Reflection

Front

Angle of incidence = angle of reflection Regular/Secular (smooth) Diffuse (rough surface)

Back

Propagation

Front

Movement through matter and space

Back

Colors of visible spectrum in order of decreasing wavelength

Front

Red - Violet (r o y g b i v)

Back

Wavelength range of visible light

Front

400 nm - 700 nm

Back