The radius of curvature of a concave mirror is 30 cm. Following Cartesian Sign Convention, its focal length is expressed as: A) -30 cm B) -15 cm C) +30 cm D) +15 cm

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The radius of curvature of a concave mirror
is 30 cm. Following Cartesian Sign
Convention, its focal length is expressed as:
A) -30 cm
B) -15 cm
C) +30 cm
D) +15 cm
Transcribed Image Text:The radius of curvature of a concave mirror is 30 cm. Following Cartesian Sign Convention, its focal length is expressed as: A) -30 cm B) -15 cm C) +30 cm D) +15 cm
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