Question

According to the Cartesian sign convention, all the distances parallel to the principal axis are measured from the __________ of the mirror. *
Radius of curvature
Principal focus
Center of curvature
Pole
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Answer 1

Answer:

The sign convention is as follows: The object is always placed to the left of the mirror. This implies that the light from the object falls on the mirror from the left-hand side. All distances parallel to the principal axis are measured from the pole of the mirror.

Explanation:

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Answer 2

here is your answer..

principal focus...

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