Question

A convex lens of focal length $20\text{cm}$ is placed coaxially in contact with a concave lens of focal length $30\text{cm}$. Determine the power of combination. Will the system be converging or diverging in nature?

• A. $-8.33\text{D}$, Diverging
• B. $1.67\text{D}$, Converging
• C. $-1.67\text{D}$, Diverging
• D. $8.33\text{D}$, Converging

Answer 1

The correct option is B $1.67\text{D}$, Converging