MHT CET 2023 Physics question
A transparent glass cube of length 24 cm has a small air bubble trapped inside. When seen normally through one surface from air outside, its apparent distance is 10 cm from the surface. When seen normally from opposite surface, its apparent distance is 6 cm. The distance of the air bubble from first surface is
Answer: (A)
Solution
Let the bubble be at real distance from the first surface; then it is from the opposite surface. For normal viewing through glass of refractive index , apparent depth = real depth / . So and $ =
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