| 1. |
Write materials required to find focal length of the concave mirror in the lab |
|
Answer» A concave mirror, a mirror holder, a white screen fixed on a stand or a white wall, an object (CANDLE) and a metre scale.Procedure - Fix concave mirror to mirror holder and place it on table.Turn the face of mirror TOWARDS a distant object (a candle in this case). The selected object should be visible with your naked eyes.Adjust the POSITION of the screen in such a way that it forms a clear image of the candle on the screen.Measure the distance between the concave mirror and the screen with a metre scale. Record your observations in observation table. Repeat the experiment two or three times and FIND the mean value of the focal LENGTH. |
|