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Calculate the refractive index of the material of the glass block shown in the diagram...

Physics
WAEC 1991
Calculate the refractive index of the material of the glass block shown in the diagram if YZ = 4cm
  • A. 0.40
  • B. 0.60
  • C. 1.50
  • D. 1.67
  • E. 2.50
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Correct Answer: Option D
Explanation
n = \(\frac{\text{real depth}}{\text {apparent depth}}\)

\(\frac{10}{10^{-4}}\) = 1.6
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