If 'u' is object distance, 'v' is image distance and 'f' is focal length, then the mirror equation is __________.

If 'u' is object distance, 'v' is image distance and 'f' is focal leng

1.	If 'u' is object distance, 'v' is image distance and 'f' is focal length, then the mirror equation is __________.
A.	1 / v - 1 / u = 1 / f
B.	1 / v + 1 / u = -1 / f
C.	1 / v + 1 / u = 1 / f
D.	1 / u - 1 / v = 1 / f
Answer» D. 1 / u - 1 / v = 1 / f

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If 'u' is object distance, 'v' is image distance and 'f' is focal length, then the mirror equation is __________.

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