Study the following ray diagrams: 

i
. 

ii.
 
iii

iv. 

The diagrams showing the correct path of the ray after passing through the lens are:

• II and III only

• I and II only

• I, II and III

• I, II and IV

C.

I, II and III

The light rays passing through the optical centre of lens traces the same path after refraction.

The light rays coming from a distant object passing parallel to principal axis, after refraction passes through the second focus of the lens.

The light rays passing through the first focus become parallel to the principal axis after passing through the lens.