Japanese translation of reflection?

Question

what is the best Japanese translation of the word reflection in the context of a reflection in a mirror?

Kanji would also be appreciated if you know those as well.

Answer 1

"reflection in a mirror"

-> 鏡に映る映像 (kagami ni utsuru eizou)

"reflection at the mirror"

-> 鏡による反射 (kagami ni yoru hansha)