An air bubble is glass is situated at a distance 3cm from a convex surface of diameter 10cm as shown in figure. At what distance from the surface will the bubble appear?

An air bubble is glass is situated at a distance 3cm from a convex sur

1.	An air bubble is glass is situated at a distance 3cm from a convex surface of diameter 10cm as shown in figure. At what distance from the surface will the bubble appear?
Answer» SOLUTION :In CASE of refraction from curved SURFACE `mu_2/v-mu_1/u=(mu_2-mu_1)/R` Here `mu_1=1.5 mu_2=1, R=-5cm` and `u=-3cm` So `1/v-((1.5))/((-3))=(1-1.5)/((-5))`i.e., `v=-2.5 cm`