Physics · Light and Optics
What is the geometric relationship between the principal axis and the reflecting surface of a spherical mirror at the point of the pole P?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1The principal axis is tangent to the mirror surface.
- 2The principal axis is normal (perpendicular) to the mirror at its pole.✓
- 3The principal axis intersects the mirror at an oblique angle.
- 4The principal axis is parallel to the mirror surface.
Correct answer
The principal axis is normal (perpendicular) to the mirror at its pole.
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