Siti stands in front of a mirror. If she moves 2 metres away from the mirror, how much further away from her will her image be compared to her original position?
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Worked Solution
Step 1: In a plane mirror, the distance from the object to the mirror equals the distance from the image to the mirror.
Step [2-9]: If Siti moves 2m back, the image also moves 2m back from its side.
Step [2-9]: The total distance increase between Siti and her image is 2m + 2m = 4m.
Correct answer: 4 metres
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