$A$ beaker contains water up to a height of $h_1$ and kerosene above the water up to a height of $h_2$. The total height is $(h_1 + h_2)$. The refractive index of water is $\mu_1$ and that of kerosene is $\mu_2$. What is the apparent shift of the bottom of the beaker when viewed from above?

• A
  $\left( {1 - \frac{1}{{{\mu _1}}}} \right)\,{h_2} + \left( {1 - \frac{1}{{{\mu _2}}}} \right)\,{h_1}$
• B
  $\left( {1 + \frac{1}{{{\mu _1}}}} \right)\,{h_1} - \left( {1 + \frac{1}{{{\mu _2}}}} \right)\,{h_2}$
• C
  $\left( {1 - \frac{1}{{{\mu _1}}}} \right)\,{h_1} + \left( {1 - \frac{1}{{{\mu _2}}}} \right)\,{h_2}$
• D
  $\left( {1 + \frac{1}{{{\mu _1}}}} \right)\,{h_2} - \left( {1 + \frac{1}{{{\mu _2}}}} \right)\,{h_1}$