Answer:
The bubble is 5.33 cm below the surface of the sphere.
Explanation:
let n be the refractive index, D be the real depth and d be the apparent depth of the bubble.
then, the refractive index is given by:
n = D/d
d = D/n
= (11 - 3)/(1.50)
= 5.33 cm
Therefore, the bubble is 5.33 cm below the surface of the sphere.
