Two lenses of focal length 8 cm and 6 cm are placed a certain distance – McqOptions

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1.	Two lenses of focal length 8 cm and 6 cm are placed a certain distance apart. If they form an achromatic combination, the separation between them is ___________
A.	5cm
B.	6cm
C.	7cm
D.	8cm
Answer» D. 8cm

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