InterviewSolution
Saved Bookmarks
| 1. |
How do you measure quickly the approximately focal lengthof a concave mirror? |
| Answer» SOLUTION :Hold the concave mirror facing some distant object like a TREE. Hold a cardboard screen in front of the mirror. Adjust the position of the screen so that a SHARP image of distant object is formed on the screen. The distance of screen from the mirror gives us the APPROXIMATE FOCAL length of the concave mirrror. | |