Question

list out the material required to find focal length of concave mirror.write the procedure and suggest the table to record,the observations of the experiment​

Answer 1

Answer:

I don't know the answer sorry for my rude answer

Answer 2

The focal length of a concave mirror :

Explanation:

Material required :

A biconcave mirror, a mirror holder, a white screen fastened on a stand or a white wall, an object (candle), and a meter scale.

Procedure

• Fix the biconcave mirror to the mirror holder and place it on the table.

• Turn the face of the mirror towards a remote object (a candle during this case). The chosen 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 gap between the biconcave mirror and also the screen with a meter scale. Record your observations in the observation table.  

• Repeat the experiment 2 or 3 times and notice the mean value of the focal length.​

Performance in the machine

• Drag the screen by clicking on purpose A of the screening point you get a pointy image of the thing.

• Measure the gap between the biconcave mirror and the screen with the given meter scale. This measured distance is the focal distance of the biconcave mirror.

• Repeat the process 2 or 3 times. Take the mean of the measured focal distance.