In Fig., determine the apparent shift in the position of the coin. Also, find the effective refractive index of the combinatino of the glass and water slab.

In Fig., determine the apparent shift in the position of the coin. Als

1.	In Fig., determine the apparent shift in the position of the coin. Also, find the effective refractive index of the combinatino of the glass and water slab.
Answer» Total apparent shift is `s=t_(1)(1-(1)/(mu_(1)))+t_(2)(1-(1)/(u_(2)))` `=8(1-(1)/(4))+4.5(1-((1)/(3))/2)` `=2+1.5=3.5cm` The apparent depth of coin from the top is `t=(8+4.5)-3.5=9cm` and, the real depth of the coin is `t_(1)+t_(2)=8+4.5=12.5` Therefore, the effective refractive index is `mu_(eff)=(" Real depth ")/(" Apparent depth ")` `=(t_(1)+t_(2))/(t)=(12.5)/9` `=1.39`

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In Fig., determine the apparent shift in the position of the coin. Also, find the effective refractive index of the combinatino of the glass and water slab.

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