Q4 Ablock of transparent material is shined by a laser beam

Last updated: 6/26/2023

Q4 Ablock of transparent material is shined by a laser beam along the surface as shown in figure One half of the beam goes straight to detector while other half travels inside the block a reaches detector At detector the time delay between the arrival of two beams is 6 3 nanosecond The refractive index of the material is 1 55 1 63 O C 1 75 1 42 0 0 0 0 A B D R 3 0m Detector