WAEC - Physics (1991 - No. 26)

Calculate the refractive index of the material of the glass block shown in the diagram if YZ = 4cm

0.40

0.60

1.50

1.67

2.50

n = \(\frac{\text{real depth}}{\text {apparent depth}}\)

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