(a) Its first focus
(b) Its optical entre
(c) Its second focus
(d)The centre of curvature of its second surface
Solution:
The ray of light after refraction passes through or appears to come from its second focus.
(a) Its first focus
(b) Its optical entre
(c) Its second focus
(d)The centre of curvature of its second surface
Solution:
The ray of light after refraction passes through or appears to come from its second focus.