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प्रश्न
The geometric centre of a spherical mirror is called its:
विकल्प
Principal axis
Pole
Centre of curvature
Normal
MCQ
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उत्तर
The geometric centre of a spherical mirror is defined as its pole. The centre of curvature is the centre of the sphere of which the mirror forms a part, while the principal axis is the line joining the pole and the centre of curvature.
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