How large an image does he observe

Reference no: EM13503954

John's face is 20 cm in front of a concave shaving mirror of focal length 30 cm. How large an image does he observe?

Reference no: EM13503954

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How large an image does he observe : John's face is 20 cm in front of a concave shaving mirror of focal length 30 cm. How large an image does he observe

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