Write materials required to find focal length of the concave mirror in the lab
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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.
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