Physicshard · Past Paper
A glass slab of thickness 3 cm and RI 1.5 is placed over a paper. What is the apparent shift of the letters?
A1 cm
B2 cm
C1.5 cm
D0.5 cm
✓ Correct Answer: A — 1 cm
Shift = t(1 - 1/n) = 3(1 - 1/1.5) = 3(1 - 2/3) = 3(1/3) = 1 cm.
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