3. A convex lens of focal length 30cm & concave lens of focal length 20cm are kept 5cm apart. Find the focal length of the equivalent lens.
Share
3. A convex lens of focal length 30cm & concave lens of focal length 20cm are kept 5cm apart. Find the focal length of the equivalent lens.
Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Verified answer
F=10 cm
hope it will help you