SUMMARY
The focal length of a converging lens cannot be 63 cm given the parameters of the problem. The object distance is 14 cm, and the virtual image is located 18 cm from the object, resulting in an image distance of -4 cm (since virtual images are represented as negative distances). Using the lens formula (1/f = 1/v - 1/u), the correct focal length is calculated to be -2.8 cm, confirming that the initial answer of 63 cm is incorrect.
PREREQUISITES
- Understanding of the lens formula (1/f = 1/v - 1/u)
- Knowledge of object distance and image distance in optics
- Familiarity with the concept of virtual images in converging lenses
- Basic principles of geometric optics
NEXT STEPS
- Study the derivation and application of the lens formula in optics
- Learn about the characteristics of virtual and real images produced by lenses
- Explore the differences between converging and diverging lenses
- Investigate practical applications of lenses in optical devices
USEFUL FOR
Students studying optics, physics educators, and anyone seeking to understand the principles of lens behavior and image formation.