Explain the differences between the classical and quantum theories
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Explain the differences between the classical and quantum theories
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Here are some key points from Classical Mechanics:-
- Classical mechanics describes the motion of macroscopic objects such as spacecraft, planets, stars, and galaxies, and use to study real objects and their motion in real space.
- Classical mechanics is based on Newtonian mechanics provides extremely accurate results as long as the domain of study is restricted to large objects.
- The classical theories are easy to understand, but this theory may not be applied to extremely small particles moving at very high speed, which turns in inaccurate results.
- In classical theory, a body always chooses the least action path and there is only one path.
- We can determine the position and velocity of a particle simultaneously with great accuracy in
Classical Physics. - The physical world is deterministic, that is, if you provide sufficient information (say initial conditions)about the given system, you can exactly predict its future.
- The classical theory proposes that light is waves and matter consists of particles.
- Physical quantities ( energy, momentum, spin ) can be considered as continuous variables.
- One can always find the physical reality of a given system or object which is independent of the observer.
- A point particle doesn’t possess spin or angular momentum.
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