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

question 3

Multiple Choice

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

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