Description
Two concave refracting surfaces of equal radii of curvature and refractive index 1.5 face each other in air as shown in figure. A point object O is placed midway, between P and B. The separation between the images of O, formed by each refracting surface is :
1) 0.214R. 2) 0.114R 3) 0.411R 4) 0.124R
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