what are observables? gives the operation and operation for the position?

Hello aspirant

Operators- In physics , an observable is a physical quantity which can be measured. Examples are position  and momentum . In systems governed by classical mechanics , it is a real  -valued "function" on the set of all possible system states. In quantum physics , it is an operator, or gauge , where the property of the quantum state  can be determined by some sequence of operations.

Now coming on Position Operators- The position operator is the operator that corresponds to the position observable of a particle.

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