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
The image of an object, formed by a plano-convex lens at a distance of 8 m behind the lens, is real and is one-third the...A ray of light of intensity I is incident on a parallel glass-slab at a point A as shown in fig. It undergoes partial re...A man with defective eyes cannot see distinctly object at the distance more than 60 cm from his eyes. The power of the l...A thin convex lens of focal length 5 cm and a thin concave lens of focal length 4 cm are combined together (without any ...Two plane mirrors M1 and M2 are inclined to each other at 70o A ray imminent on the mirror M1 at an angle falls on M2 an...