How to find the rough focal length of concave mirror?
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Focal length of concave mirror is half of its radius of curvature
So F=R÷2
If you have details such as u,v then formula is
1÷u + 1÷v =1÷f
So F=R÷2
If you have details such as u,v then formula is
1÷u + 1÷v =1÷f
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