Define the principle focus of a concave mirror???
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Answer:
Light rays that are parallel to the principal axis of a concave mirror converge at a specific point on its principal axis after reflecting from the mirror. This point is known as the principal focus of the concave mirror.
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Answer:
R=2f
Explanation:
the point where the rays converge or diverge in a concave or convex mirror.
principle focus is half of the radius of curvature.
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