Physics, asked by priyansh1900, 1 year ago

how to find dimensions in physics

Answers

Answered by Ajay1291
1
hey dear sweet friend here is your answer


Generally it’s not a case of finding dimensions in physics, in the sense that a “dimension” pertains to a mathematical direction along which physical entities can move/interact. This notion of dimensions is, most often, something that we input into the theory, before we start playing games with it.

That said, there’s one pertinent instance that I know of in which the number of spacetime dimensions is actually determined by the theory in question, in other words it’s not an input! This occurs in String theory and it’s a remarkable feature to behold! The downside, of course, is that we only observe 4 spacetime dimensions (3 “space dimensions” plus 1 “time dimension”), so the fact that string theory predicts that there are at least 6 additional (spacelike) dimensions requires a pretty-good explanation! In other words, string theorists have to explain why there being extra dimensions is consistent with the fact that we don’t observe them. This is most commonly explained by saying, roughly speaking, that the dimensions are “curled up” so tiny that we don’t see them.




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Answered by sahiljairamani78
1
we can find the dimensions in physic by converting any physical quantities into the simpler basic units after that as we know that the basic dimensions are of three units length, mass, and time(L,M,T).
EXAMPLE:- dimension of velocity:-
V=m/s
V=(L/T)
V=LT-1
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