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  3. An object is placed in front of a symmetrical convex lens with refractive index 1.5 and radius of curvature 40 cm. The surface of the lens further awa

. An object is placed in front of a symmetrical convex lens with refractive index 1.5 and radius of curvature 40 cm. The surface of the lens further awa

An object is placed in front of a symmetrical convex lens with refractive index 1.5 and radius of curvature 40 cm. The surface of the lens further away from the object is silvered. Under auto-collimation condition,the object distance is
 

  • (A):20 cm
  • (B):10 cm
  • (C):40 cm
  • (D):5 cm

Best Answer

Correct Answer:

(A): 20 cm

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