sir i wanted to ask: can we change the focal length of a spherical mirror by changing the object dist from it? Why?
Asked by
| 24th Feb, 2012,
10:04: PM
Expert Answer:
The focal length can be changed if lens become thin or thik, or if the medium in which lens is placed changed.
Answered by
| 24th Feb, 2012,
10:17: PM
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