Two concave refracting surfaces of equal radii of Two concave refracting surfaces of equal radii of 1.5 face each other

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

                                                                   (JEE-2025)