Grade 11Wave Optics
A child is standing in front of a straight plane mirror. His father is standing behind him, such that distance between child and mirror is twice the distance between father and mirror. The height of the father is double the height of the child. What is the minimum length of the mirror so that(a) the child can completely see his father’s image in the mirror?(b) if father wishes to see his child’s image completely in the mirror?© the images of both father and child are seen?
A child is standing in front of a straight plane mirror. His father is standing behind him, such that distance between child and mirror is twice the distance between father and mirror. The height of the father is double the height of the child. What is the minimum length of the mirror so that
(a) the child can completely see his father’s image in the mirror?
(b) if father wishes to see his child’s image completely in the mirror?
© the images of both father and child are seen?
