Which one of the following statement is correct

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Which one of the following statement is correct?

A. The image formed by a concave mirror for an object lying at infinity is at the principal focus, highly diminished, real and inverted

B. A ray of light parallel to the principal axis after reflection from a concave mirror appears to diverge from the principal focus of the mirror

C. The focal length of a spherical mirror is double of its radius of curvature

D. A ray of light travelling from a rarer medium to a denser medium bends away from the normal

Answer: Option A

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