NTA Abhyas JEE Main2020PhysicsRay OpticsPractice
Given that, velocity of light in quartz = 1.5 x 10 8 m/s and velocity of light in glycerine = (9/4) x 10 8 m/s. If a slab made of quartz is placed in glycerine as shown in the figure. How much is the shift (in cm) in the position of the object produced by slab?
Correct answer
6
Step-by-step solution
n quartz = 2 n glycerine = 4 3 ⇒ μ rel = n quartz n glycerine = 2 4 / 3 = 3 2 shift = t 1 - 1 μ rel = 1 8 1 - 1 3 / 2 = 6 cm