Practicing Success

Target Exam

CUET

Subject

Physics

Chapter

Ray Optics

Question:

The radius of curvature of each surface of a double convex lens is 15 cm and the refractive index of the medium of the lens is 1.5. What is the focal length of the lens ?

Options:

7.5 cm

15 mm

30 cm

15 cm

Correct Answer:

15 cm

Explanation:

The correct answer is Option (4) → 15 cm