Question

An optical component and an object S placed along its optic axis are given in Column I. The distance between the object and the component can be varied. The properties of images are given in Column II. Match all the properties of images from Column II with the appropriate components given in Column I

Answer 1

(A) For a concave mirror we can have real image when $\left|u\right|>\left|f\right|$

Virtual image when $\left|u\right|<\left|f\right|$

Magnified image when $\left|f\right|<\left|u\right|<2\left|f\right|$

Image at infinity when $\left|u\right|=\left|f\right|$

(B) For a convex mirror, we know that it will always form virtual, diminished image.

(C) For a biconvex lens,we can get .Real image,virtual image,magnified image & image at infinity for the same values of concave mirrior.

(D) For concavo convex lens we will work like a converging lens hence we can observe all the four image natures mentioned.i.e real image,virtual images,enlarged image & image at infinity.