A man sits in an optician's chair looking into plane mirror which is 2 m away from him and views the image of a chart which faces the mirror and is 50 cm behind his head. How far away from his eyes does the chart appear to be?
Answers
The chart appear to be 4.5 m away from his eye.
Explanation:
The chart image will appear 4.5 m away from his eye.
The chart image will shape at a distance of 2 m + 0.5 m = 2.5 m behind the mirror.
The picture created by a mirror of the plane is at the same gap behind it as it is between the object and the reflector.
Distance of the picture of the chart from the eye = man distance from the mirror + image distance created behind the mirror
= 2 + 2.5
= 4.5 m.
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4.5 m away from eye