Question

Draw ray diagrams to represent the nature, position and relative size of the image formed by a convex lens for the object placed: 

(a) at 2F₁ 

(b) between F₁ and the optical centre O of lens: 

Answer 1

(a) At 2F₁

Nature : Real, inverted, Size to Size.

Position : At 2F

(b) Between F₁ and the optical centre O of lens

Nature: Virtural,erect,enlarged

Position: on the same side of the lens.