Question

The ratio of power of two convex lens is 2:1. When these are placed in contact then power of combination is 6D. Choose the correct option.
(Hint- more than one option may be correct.)

A) Focal length of combination is 50/3 cm.

B) Power of lenses are 4D and 2D.

C) Focal length of combination is 100/3 cm

D) Power of lenses are 4D and 1D​

Answer 1

Answer:

A and B

Explanation:

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