Question

Define the term principal axis of a spherical mirror.​

Answer 1

The principal axis of a spherical mirror is a line going through the center of the mirror that is exactly perpendicular (sometimes said "normal") to the surface of the mirror. By definition, a spherical mirror is rotationally symmetrical around its principal axis.

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Answer 2

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$\Large\fbox{\color{purple}{CORRECT \: QUESTION}}$

DEFINE THE FOLLOWING TERMS IN RELATION TO SPHERICAL MIRRORS

PRINCIPAL AXIS

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$\Large\fbox{\color{purple}{ SOLUTION }}$

★ PRINCIPAL AXIS ★

THE STRAIGHT LINE THAT GOES TO THE CENTRE OF THE SPHERICAL MIRROR AT RIGHT ANGLE TO THE MIRROR IS CALLED PRINCIPAL AXIS

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