NEETPhysicsRay Optics
An infinitely long cylinder of radius R is made of an unusual exotic material with refractive index –1 (Fig. 9.7). The cylinder is placed between two planes whose normals are along the y direction. The center of the cylinder O lies along the y-axis. A narrow laser beam is directed along the y direction from the lower plate. The laser source is at a horizontal distance x from the diameter in the y direction. Find the
Options
- ARπ/8 ≤ x ≤ R3π/8
- BRπ/4 ≤ x ≤ R3π/8
- CR/8 ≤ x ≤ R3π/8
- DR/4 ≤ x ≤ R3π/8
Correct answer
A. Rπ/8 ≤ x ≤ R3π/8
Step-by-step solution
Correct Option is : (A) Rπ/8 ≤ x ≤ R3π/8