Geometrical OpticsHard
Question
A double convex lens, made of a material of refractive index μ1, is placed inside two liquids of refractive indices μ2 and μ3, as shown μ2 > μ1 > μ3. A wide, parallel beam of light is incident on the lens from the left. The lens will give rise to : -
Options
A.a single convergent beam
B.two different convergent breams
C.two differ divergent beams
D.a convergent and a divergent beam
Solution
As given u2 > u1 > u3
∵ u2 > u1 ⇒ lens act as a concave lens upper half portion of lens & u3 < u1
⇒ Lower half portion act as a convex lens.
∵ u2 > u1 ⇒ lens act as a concave lens upper half portion of lens & u3 < u1
⇒ Lower half portion act as a convex lens.
Create a free account to view solution
View Solution FreeMore Geometrical Optics Questions
Graph of position of image vs position of point object from a convex lens is shown. Then, focal length of the lens is...A transparent thin film of uniform thickness and refractive index n1 = 1.4 is coated on the convex spherical surface of ...A point source of light is place 4 m below the surface of water of refractive index 5/3. The minimum diameter of a disc ...Bottom face of the glass cube is solved as show. A ray light is incident on top face of the cube as shown deviation of t...An object O is kept infront of a converging lens of focal length 30 cm behind which there is a plane mirror at 15 cm fro...