Navigate

Two lenses of power 15 D and -3 D are placed in contact.

Two lenses of power 15 D and -3 D are placed in contact. The focal length of the combinations is

Options

(a) 10 cm
(b) 15 cm
(c) 12 cm
(d) 8.33 cm

Correct Answer:

8.33 cm

Explanation:

No explanation available. Be the first to write the explanation for this question by commenting below.

KL2014
admin:

Related Questions

  1. The transverse nature of electromagnetic waves is proved by which of the following?
  2. The resistances of the four arms P,Q,R and S in a Wheatstone’s bridge
  3. Ohm’s law is not applicable except to
  4. Two wheels having radii in the ratio 1:3 are connected by a common belt
  5. A solid sphere, a hollow sphere and a ring are released from top of an inclined