A printed page is kept pressed by a glass cube (μ = 1.5) of edge 6.0 cm. By what amount will the printed letters appear to be shifted when viewed from the top?
A
2.0 cm
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B
4.0 cm
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C
6.0 cm
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D
8.0 cm
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Solution
The correct option is A 2.0 cm The thickness fo the cube = t = 6.0 cm. The shift in the position of the printed letters is △t=(1−1μ)t =(1−11.5)×6.0cm=2.0cm.