focal-length
| Topic | Replies | Views | Activity | |
|---|---|---|---|---|
| The distance between a convex lens and a plane mirror is 10 cm |
|
1 | 2879 | July 11, 2019 |
| Why is the focal length of a convex lens is taken positive |
|
1 | 406 | July 10, 2019 |
| An object is 15 cm in front of a diverging lens with a focal length of 10cm |
|
0 | 1874 | March 24, 2018 |