A) 1 convex lens and 1 plane mirror
B) 1 convex, 1 concave lens
C) 2 convex lenses
D) 2 concave lenses
Correct Answer: B
Solution :
If two or more lenses are combined together in such a manner that this combination provides a image of different colours at the same point and of the same size. Then this property is known as achromatism for this concave and convex are used.You need to login to perform this action.
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