A ray passing through which part of a lens emerges undeviated ? |
|||
(a) |
Focus |
(b) |
Centre of curvature |
(c) |
Optical centre |
(d) |
Between focus and centre of curvature |
A ray passing through which part of a lens emerges undeviated ? |
|||
(a) |
Focus |
(b) |
Centre of curvature |
(c) |
Optical centre |
(d) |
Between focus and centre of curvature |