A man's face is 30 cm in front of a concave spherical shaving mirror.If the image is erect and 1.5 times as large as his face,what is the radius of curvature of the mirror?
A) 40 cm
B) 60 cm
C) 100 cm
D) 140 cm
E) 180 cm

Question

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The Answer of A man's face is 30 cm in front of a concave spherical shaving mirror.If the image is erect and 1.5 times as large as his face,what is the radius of curvature of the mirror?
A) 40 cm
B) 60 cm
C) 100 cm
D) 140 cm
E) 180 cm

A Man's Face Is 30 Cm in Front of a Concave