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Vanya Saxena Grade: Upto college level
        

 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.


 

7 years ago

Answers : (1)

shefali sharma
36 Points
										

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.

7 years ago
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