The diagram alongside shows a lens as a combination of a glass block and two prisms. (i) Name the lens formed by the combination. (ii) what is the line XX’ called? (iii) Complete the path of the incident ray AB after passing through the lens. (iv) The final emergent ray either meets XX’ at a point or appears to come from a point on XX’ Label it as F. what is this point called?
(i) The combination forms concave lens.
(ii) XX' is known as principal axis. (iii) Complete diagram is drawn as
(iv) The point F is called as Focal point or focus.
Solution The Diagram Alongside Shows a Lens as a Combination of a Glass Block and Two Prisms. (I) Name the Lens Formed by the Combination. (Ii) What is the Line Xx’ Called? Concept: Concept Refraction of Light Through a Lense.