Guest

An achromatic combination of lenses is formed by joining (a) 2 convex lenses (b) 2 concave lenses (c) 1 convex and 1 concave lens (d) 1 convex and 1 plane mirror



An achromatic combination of lenses is formed by joining


        (a)    2 convex lenses  


(b)    2 concave lenses


(c)    1 convex and 1 concave lens


(d)    1 convex and 1 plane mirror


Grade:10

1 Answers

Navjyot Kalra
askIITians Faculty 654 Points
10 years ago

(c)

If two or more lenses are combined together in such a way that this combination produces images of different colours at the same point and of the same size, then this property is called ''achroniatism''. Concave and convex type of lenses are used for this combination.

Think You Can Provide A Better Answer ?

ASK QUESTION

Get your questions answered by the expert for free