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Summary Quantum phenomenon exam revision notes used for Paper 1 AQA A - Level physics. $3.93   Add to cart

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Summary Quantum phenomenon exam revision notes used for Paper 1 AQA A - Level physics.

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Quantum phenomenon exam revision notes used for Paper 1 AQA A - Level physics. Includes all parts for the topic on the specification. Used already for A-Level exam to a undergraduate in physics currently at University.

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  • July 7, 2024
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  • 2022/2023
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06 July 2024 19:38

Quantum physics
Light diffracts when beamed through a slit.
The process off diffraction is one that belongs to waves.
Light can also cut as a particle from the photoelectric effect.
Particles such as electrons can be seen to out as waves when b
metal plate
If the electrons did n
e-
On the screen we se

screen

This effect occurs due to the electrons travelling past the atoms
If particles can be diffracted they must have a wavelengths (due
!
Matter wavelengths are called de Broglie wavelength: 𝜆 = =
"




Speed off electrons from an electron gun:
𝐸 𝐸 = 𝑣𝑄
𝑣=
anode (+) 𝑄
Cathodes (-)


Accelerated voltage (Va)
P.D (V)


The photo electric effect proves that light can act as a particle.

𝐸𝑛𝑒𝑟𝑔𝑦 𝑜𝑓 𝑎 𝑝ℎ𝑜𝑡𝑜𝑛 = 𝐸 = ℎ𝑓

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