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What is the physical meaning of the following with relations and diagrams. 1-Zero point energy    2- Thermal expansion   3-...

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Physics

What is the physical meaning of the following withrelations and diagrams.
1-Zero point energy   
2- Thermal expansion  
3- The dispersion relation
4-Hall Effect       
5- The density of states    
6- Debye T^(3 ) Law

Answer & Explanation Solved by verified expert
4.4 Ratings (687 Votes)
1 Zero energy is the lowest energy of a quantum mechanicalsystem Now classically it should be zero But in quantum mechanicsit is never zero as a system should have a minimum energy tosustain itself2 When a system is heated its length or area or volumechangesusually increases It is known as thermal expansion Whena    See Answer
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