1) All distances are measured from the pole of a spherical error.
2) Distances measured in the direction of incident light are taken as positive, while distances measured in a direction opposite to the direction of the incident light are taken as negative.
3) The upward distances perpendicular to the principal axis are taken as positive, while the downward distances perpendicular to the principal axis are taken as negative.
Answers & Comments
Answer:
1) All distances are measured from the pole of a spherical error.
2) Distances measured in the direction of incident light are taken as positive, while distances measured in a direction opposite to the direction of the incident light are taken as negative.
3) The upward distances perpendicular to the principal axis are taken as positive, while the downward distances perpendicular to the principal axis are taken as negative.
please mark me as brainlist
Verified answer
Answer:
Here's your answer in attachment
plz mark as BRAINLIEST