Question

Find the focal length of a concave mirror if:
(i)u=62;v=42.5
(ii)u=62;v=37.5
(iii)u=62;v=41
(iv)u=62;v=45
(v)u=70;v=38
(vi)u=52;v=42
(vii)u=78;v=35

Answer 1

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