The straight line passing through the pole (P) and the center of curvature (C) of a mirror is called the _______ of that mirror.
قطب اور آئینے کے گھماؤ کے مرکز سے گزرنے والی سیدھی لائن کو اس آئینے کا _______ کہا جاتا ہے۔
Answer: Principal Axis
Explanation
The principal axis is a straight line passing through the center of curvature and the pole of a spherical mirror.
It serves as the reference line for measuring distances and analyzing image formation in mirrors.
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