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  7. Unit 1 PHYA1 - Particles, Quantum Phenomena and Electricity

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Summary A level Physics - Photons
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  • Unit 1 PHYA1 - Particles, Quantum Phenomena and Electricity
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These are highly detailed that I complied over two years of studying this subject. Since I took notes like crazy, no area is left untouched so everything is there if you are struggling to understand a concept or equation. They are colourful, organised and neat, so perfect for the eye to understand

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  • August 25, 2024
  • 13
  • 2024/2025
  • Summary

Subjects

  • a level
  • physics
  • a level physics
  • maths
  • thermal gravity
  • gravitation
  • fields
  • nuclear
  • notes

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  • A/AS Level
  • AQA
  • Physics
  • Unit 1 PHYA1 - Particles, Quantum Phenomena and Electricity
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Content preview

, Photon -
a Quantum of Photoelectric Effect
energy
.
Energy of Photone N
-




At

Energy of photons of radiation is proportional to
Everpreasenu
·




frequency of that radiation
a
Frequency Radiation .



E =

not E =

energy of photon (5)
f =

frequency (M2)
= Planck constant




Photo Electric
Effect
·
When photons hit metal ,
each individual photon interacts with
metal
a
singledectron in



·
Minimum
energy required for electron to escape metal is called
the
function I


Election
game energy of photon
·
.



is
Energy is
greater
than equal to work
function electron
·
or
,

emmited .




Excess in Kinetic
energy of
· in the emited
energy dectron
.




KEY ANSWERS

The
gold Leaf electroscope doesn't work with visible
light because
·




-


Energy of a
photon is less than the work
function .

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