The net power (P) of three lenses having powers P1, P2, P3 placed in contact is given by |
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(a) |
P = P1X P2 X P3 |
(b) |
P = P1+ P2 + P3 |
(c) |
1/P = 1/ P1+ 1/ P2 + 1/ P3 |
(d) |
P = (P1+ P2 + P3)/3 |
The net power (P) of three lenses having powers P1, P2, P3 placed in contact is given by |
|||
(a) |
P = P1X P2 X P3 |
(b) |
P = P1+ P2 + P3 |
(c) |
1/P = 1/ P1+ 1/ P2 + 1/ P3 |
(d) |
P = (P1+ P2 + P3)/3 |