OPTICS Flashcards by Tin De Castro

Q

Parallel

A

longitudinal

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Q

perpendicular

A

transverse

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Q

energy is related to square of…

A

Amplitude

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Q

speed of sound

A

344 m/s

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Q

Audible sound for humans

A

20 Hz to 20 KHz ( 2000)

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Q

O db

A

1

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Q

10 db

A

10

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Q

20 db

A

100

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Q

30db

A

1000

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Q

angle of refraction is SMALLER than angle of incidence

A

First medium is less dense

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Q

Refraction unchanged

A

Frequency

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Q

Doppler unchanged

A

speed

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Q

Unit of index of refraction

A

None

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Q

index of refraction

AIR

A

1.00

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Q

index of refraction

WATER

A

1.33

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Q

index of refraction

Glass

A

1.5

Q

Hyperopia

aka

A

Farsighted

Q

Myopia

aka

A

Nearsighted

Q

Hyperopia (Farsighted)

lens

A

Convex

Q

Myopia (Nearsighted)

lens

A

concave

Q

Myopia eyeball

A

too long

Q

constructive interference

A

same phase

Q

destructive interference

A

cancel out

Q

same side of the object

A

virtual image

Q

other side of the lens

A

Real image

Q

upright

A

virtual image

Q

inverted image

A

Real image

Q

diverging lens

A

concave lens

Q

converging lens

A

convex lens

Q

LENS MNEMONICS

A

CALEDI-SUV