Tan's Face Is 20 Cm in Front of a Concave

question 87

Multiple Choice

Tan's face is 20 cm in front of a concave shaving mirror.If he observes his image to be twice as big and upright,what is the focal length of the mirror?

• A)10 cm
• B)-40 cm
• C)-50 cm
• D)40 cm
• E)50 cm

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Definitions:

Medical Record

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