College Physics

1st Edition
Paul Peter Urone + 1 other
ISBN: 9781938168000



College Physics

1st Edition
Paul Peter Urone + 1 other
ISBN: 9781938168000
Textbook Problem

Quantum gravity, if developed, would be an improvement on both general relativity and quantum mechanics, but more mathematically difficult. Under what circumstances would it be necessary to use quantum gravity? Similarly, under what circumstances could general relativity be used? When could special relativity, quantum mechanics, or classical physics be used?

To determine

Under what conditions quantum gravity and general relativity is used. Also, state the situation when special relativity, quantum mechanics or classical physics are used.


There is no experiment or observation which needs a quantum theory of gravity. However there have been instances where current theoretical framework of physics is incomplete without the concepts of quantum gravity such as singularity theorems, initial conditions of cosmology, black hole existence, inconsistencies in semi classical theories etc. Quantum gravity a fundamental theory which is valid at all scales.

There is no accurate difference between the classical theory and quantum theory of physics...

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