an object is placed 10 cm in front of a plane mirror. where is the image formed ?how far is it from the mirror

Answer 1

Big ol' bootyhole

Answer 2

20cm

Answer 3

the answer is 20 cm

Answer 4

A 5 cm tall object is placed 10 cm in front of an unknown mirror. A virtual image is formed 3.5 cm behind the mirror
(a) Calculate the focal length of the mirror