Questions
An air bubble in a glass slab with refractive index 1.5 (near normal incidence) is 5cm deep when viewed from one surface and 3cm deep when viewed from the opposite face. The thickness (in cm ) of the slab is
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Correct option is C
Here μ =1.5l= length of the slabx= position of air bubble from one side As per question,total apparent length of slab= 5+3 or, xμ+(l-x)μ=8 or ,lμ=8∵l=8μ=8×1.5=12 cmSimilar Questions
A vessel is half filled with a liquid of refractive index μ. The other half of the vessel is filled with an immiscible liquid of refractive index 1.5 μ. The apparent depth of vessel is 50% of the actual depth. The value of μ is
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