What Are the Key Differences Between Quantum and Classical Effects in Physics?

[Muneer QAU]

i learned that we have to consider quantum effects at low temperatures and classical effects at high temperatures but i do not the physics behind it
can anyone explain it for me?
thanks in advance :)

 

[EmpaDoc]

Very roughly, Bohr's correspondence principle says that in the limit of high quantum numbers, classical physics applies.
And at low temperatures, only states with low quantum numbers are occupied.

 

[Muneer QAU]

thnxxx EmpaDoc
:)