Question:
4 A plano convex lens f 20 cm is silvered at plane surface
Last updated: 6/10/2023
![4 A plano convex lens f 20 cm is silvered at plane surface](https://media.kunduz.com/media/sug-question-candidate/20210613233051436656-2662149.jpg?h=512)
4 A plano convex lens f 20 cm is silvered at plane surface The focal length will be a 20 cm c 30 cm b d 40 cm 10 cm 72 W de c
Last updated: 6/10/2023
4 A plano convex lens f 20 cm is silvered at plane surface The focal length will be a 20 cm c 30 cm b d 40 cm 10 cm 72 W de c