Section-C: Comprehension Type
A concave mirror forms real image of a point source lying on the optical axis at a distance of 50 cm from the mirror. The focal length of the mirror is 25 cm. The mirror is cut in two, and its halves are drawn at a distance of 1 cm apart in a direction perpenedicular to the optical axis.
In the given situation, if the two halves are each rotated (before being separated) about S by 90°, with reference to original position, then the distance between the two images will be