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Microscope

Theme E - Nuclear & Quantum Physics

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Rocket

Theme A - Space, Time & Motion

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Thermometer

Theme B - The Particulate Nature Of Matter

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Water Wave

Theme C - Wave Behaviour 

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Magnifying Glass Tilted Right

Theme D - Fields

Ahoy young physicist! Ready to dive into the world of photons and matter? Fasten your seatbelts because things are about to get LIGHTy... okay, puns aside, let&#39;s get to it.

<ul>
	<li>What is it?
	<ul>
		<li>Happens when photons with a teeny bit of energy (from a few electronvolts, eV, to a few thousand eV or keV) hit metals and make them shoot out electrons.</li>
	</ul>
	</li>
	<li>Energy range: Visible light up to the least energetic X-rays.</li>
	<li>What happens?
	<ul>
		<li>Photon gives ALL its energy to the metal and gets completely absorbed. Think of it as giving your full pocket money to buy that one big toy you&#39;ve always wanted.</li>
	</ul>
	</li>
	<li>Real-life example: Solar panels! They convert sunlight (yes, those are photons) into electricity using the photoelectric effect.</li>
</ul>

<ul>
	<li>What is it?
	<ul>
		<li>When photons get scattered after hitting matter, and their frequency changes.</li>
	</ul>
	</li>
	<li>Energy range: Up to about 1 mega-electronvolt (MeV).</li>
	<li>Real-life example: When you throw a ball at a wall, it bounces back. The Compton effect is like that but for photons and matter.</li>
</ul>

<ul>
	<li>What is it?
	<ul>
		<li>Photons with energy of 1.022 MeV or more go POOF! And instead, you get two particles &ndash; one of them being the opposite of the other.</li>
	</ul>
	</li>
	<li>Typical particles: An electron (e&minus;) and its opposite, the positron (e+). It&#39;s like the superhero-villain duo of the particle world.</li>
	<li>Energy distribution: The energy of the photon gets split &ndash; some to create these particles and the rest as their running energy.</li>
	<li>Fun Fact: Momentum remains conserved here! Like if two people, one big and one small, were to jump off a seesaw, they&#39;d move in a way that balances their combined momentum.</li>
	<li>Real-life example: Ever heard of PET scans in hospitals? They detect positrons. That&#39;s our pair production in action!</li>
</ul>

<ul>
	<li>What is it?
	<ul>
		<li>When photons with HUGE energy (&gt;2MeV) hit nuclei, they pump it up to a high energy state. After a while, the nucleus chills and releases some particles.</li>
	</ul>
	</li>
	<li>What&#39;s released?
	<ul>
		<li>Particles like neutrons, protons, or alpha particles can be ejected. Think of it as a popcorn kernel popping after absorbing heat.</li>
	</ul>
	</li>
	<li>Real-life example: This process is quite vital in understanding how stars, including our Sun, produce energy.</li>
</ul>

Remember young physicist, every interaction we see around, from the glow of our screens to the energy from the Sun, is based on these wonderful principles. Keep exploring, and may the photons be with you! 💡🔭🌟

Theme E - Nuclear & Quantum Physics

Unveiling Photon-Matter Interactions: Beyond Compton & Photoelectric Effects

Table of content

The Photoelectric Effect 🌞

The Compton Effect 🌀

Unlock the Full Content!

Theme E - Nuclear & Quantum Physics

Unveiling Photon-Matter Interactions: Beyond Compton & Photoelectric Effects

Table of content

The Photoelectric Effect 🌞

The Compton Effect 🌀

Unlock the Full Content!