Question

A glass paper-weight (n =1.5) of radius 3 cm has a tiny air bubble trapped inside it. Closest distance of the bubble from the surface is 2 cm. Where will it appear when seen from the other end (from where it is farthest)?

Answer 1

Answer:

Explanation:

Using the formula for refraction through curved surfaces, vN2−uN1=RN2−N1

v1−−31.5=−51−1.5

v1+0.5=0.1

v1=−0.4

v=−410=−2.5cm