Two immiscible transparent liquids of refractive indices 1.5 and 43 are arranged as shown in figure. The apparent depth of mark at the bottom from top surface is
A
10cm
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B
7cm
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C
433cm
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D
12cm
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Solution
The correct option is B7cm shift observed due to them is t1(1−1μ1)+t2(1−1μ2)