NEETPhysicsRay Optics
Two transparent media of refractive indices ₁ and ₃ have a solid lens shaped transparent material of refractive index ₂ between them as shown in figures in Column II. A ray traversing these media is also shown in the figures. In Column I different relationships between ₁, ₂ and ₃ are given. Match them to the ray diagram shown in Column II.
Options
- A(A) P,R, (B) Q,S,T, (C) P,R,T, (D) Q,S
- B(A) P, (B) Q,S, (C) P,R,T, (D) Q,R,S
- C(A) P,R, (B) Q,S, (C) P,T, (D) Q,R,S
- D(A) P, (B) Q,S,T, (C) P,T, (D) Q,S
Correct answer
A. (A) P,R, (B) Q,S,T, (C) P,R,T, (D) Q,S
Step-by-step solution
(A) since ₁ < ₂ , the ray of light will bend towards normal after first refraction. (B) ₁> ₂ , the ray of light will bend away from the normal after first refraction. (C) since ₂= ₃ means in second refraction there will be no change in the path of ray of light. (D) Since ₂> ₃ , ray of light will bend away from the normal after second refraction. Therefore the correct options are as under. (A) P, R (B) Q, S, T (C) P, R, T (D) Q, S