If f1 and f2 are the distances from the optical centre of a convex lens of focal length to conjugate two points P1 and P2 respectively, the following relationship holds good (A) f = f1 + f2 (B) f = ½ (f1 + f2) (C) 1/f = 1/f1 + 1/f2 (D) None of these

If f1 and f2 are the distances from the optical centre of a convex lens of focal length to conjugate
two points P1 and P2 respectively, the following relationship holds good
(A) f = f1 + f2
(B) f = ½ (f1 + f2)
(C) 1/f = 1/f1 + 1/f2
(D) None of these
by

1 Answer

Answer :

(C) 1/f = 1/f1 + 1/f2
by

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