Question

6. A convex lens of focal length 2 m and a concave lens of focal length 50
cm are placed in close contact with one another, then the focal length and
power of the combination will be *
O(a) 6.67 cm , 1.5D
(b) -6.67 cm, -1.5D
O (c) -6.67 cm, 1.5D
0 (d) 6.67 cm , -1.5D​

Answer 1

Explanation:

6.67 cm , 1.5 D hope this is your answer