a plane mirror

Diagram shows the position of a man, a flower pot and a plane mirror.
Rajah menunjukkan kedudukan seorang lelaki , sebuah pasu bunga dan sebuah cermin satah.





What is the distance, in m, between the flower pot and the image of the man?
Berapakah jarak, dalam m antara pasu bunga dengan imej lelaki itu?

A     1

B     4

C     6

D     7





Answer : D
The distance of the image, v from the plane mirror is the same as the distance of the object, u from the mirror.