Question
Question: A transparent cube of 15 cm edge contains a small air bubble. Its apparent depth when viewed through...
A transparent cube of 15 cm edge contains a small air bubble. Its apparent depth when viewed through one face is 6 cm and when viewed through opposite face is 4 cm. Then refractive index of cube material is-
A
2
B
1.5
C
1.6
D
2.5
Answer
1.5
Explanation
Solution
Le the real depth of bubble from one side be x. Then
m = 
= 
\ x = 9 cm