The lens equation 1/f = 1/f1 + 1/f2 is applicable – McqOptions

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1.	The lens equation 1/f = 1/f1 + 1/f2 is applicable
A.	when the thickness of the lens is small
B.	only to conjugate distances along the principal axis
C.	the computed quantities are accurate enough for geometrical optics of simple distances
D.	all the above.
Answer» E.

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