In a row of people, all facing north, Anil is 5th from the right end. Mona is 13th from the right end. Mona is exactly between Anil and Ritu. If Ritu is 5th from the left end of the row, how many people are there in the row?
If an image formed after reflection from a mirror is virtual and highly diminished, then the position of the object and type of mirror is:
Between C and F and concave mirror
Centre of curvature and concave mirror
Infinity and concave mirror
Infinity and convex mirror