A small ink dot on a paper is viewed through a glass slab of thickness `10 cm` , and refractive index `1.5`. By what distance would the dot appear to be raised ?

Explanation

To find the distance by which the ink dot appears to be raised when viewed through a glass slab, we can follow these steps:

### Step 1: Understand the Setup
We have a glass slab of thickness \( t = 10 \, \text{cm} \) and a refractive index \( \mu = 1.5 \). The dot is located on a paper below the glass slab.

### Step 2: Calculate the Apparent Depth
The apparent depth \( d' \) of the dot when viewed through the glass slab can be calculated using the formula:
\[
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