5. Find out the letters of the English alphabet or any other language known to you in which the image formed in a plane mirror appears exactly like the letter itself. Discuss your findings.
In a plane mirror, letters with vertical symmetry appear unchanged due to lateral inversion. Examples in English include A, H, I, M, O, T, U, V, W, X, Y. Similar symmetrical characters in other languages, like ? in Hindi, also remain identical.