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A slab of refractive index 3/2 is moved towards a stationary observer A point o is observed by the observer with the help of paraxial rays through the slab . Both the point o and the observer lie in the air .Find the velocity with which the image will move.

 A slab of refractive index 3/2 is moved towards a stationary observer A point o is observed by the observer with the help of paraxial rays through the slab . Both the point o and the observer lie in the air .Find the velocity with which the image will move.


 

Grade:Upto college level

1 Answers

shefali sharma
36 Points
11 years ago

let the distance of observer from slab be x and distance of point from slab be y. then apparent distance of object from observer is

x+ y/(3/2)= constant

differentiate this

dx/dt+ 2dy/3dt=0.

use this relation.

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