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Question

A man sits in an optician's chair, looking into a plane mirror which is 2m away from him and views the image of a chart which faces the mirror and is 50cm behind his head. How far away from his eyes does the chart appear to be?

Solution
Verified by Toppr

Distances between the man and the mirror= 2cm
Distances between the man and chart = 50cm=0,5m
Distance between the chart and mirror = 0.5m+2m= 2.5m
Distance between mirror and the image of the chart=2.5m
Distance between man and the image of chart= distance between man and the mirror +Distances between mirror and the image of the chart=2m+2.5m=4.5m

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