A tank is filled with water to a height of `12.5 cm` The apparent depth of a needle lying at the bottom of the tank is measured by a microscope to be `9.4cm`. What is the refractive index of water ? If water is replaced by a liquid of refractive index `1.63` upto the same height, by what distance would the microscope have to be moved to focus on the needle again ?
Text Solution
AI Generated Solution
To solve the problem, we will follow these steps:
### Step 1: Calculate the Refractive Index of Water
The refractive index (μ) is given by the formula:
\[
\mu = \frac{\text{Real Depth}}{\text{Apparent Depth}}
\]
...
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