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  • AQA
  • Phsyics
  • Unit 2 PHYA2 - Mechanics, Materials and Waves
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Optics at as-level

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2022/2023 Written for academic year
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Unit 2 PHYA2 - Mechanics, Materials and Waves
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Optics at as-level is an aesthtically pleasing presentation that can be printed to be used as notes. It follows the pastel colour palette. Optics at as-level is of the AQA exam board.

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Optics - AS
LEVEL
Physics 5

, Refraction
Is when a wave changes speed when it crosses a new medium. If a medium is more optically dense
the wave will slow down and bend towards the normal θi > θr. Of the medium is less optically dense
the wave will speed up and bend away from the normal. Θi < θr

The refractive index represents how optically dense a medium is.
The absolute refractive index is calculated by n = C/C1
The relative refractive index at the boundary between 2 materials is the ratio of speed of light between
the 2 material 1n2 = c1/c2

Snells law states that n1sinθ = n2sinθ
This can be used to find the critical angle

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A/AS Level
Subject
Phsyics
Uploaded on
December 3, 2022
Number of pages
8
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2022/2023
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