ans is c(how??? please explain how to approach in these type of problems..)
-
UP 0 DOWN 0 0 2
2 Answers
1sandi.....this problem is pretty basic..tho seems difficult
light is always incident on the glass normally....that is ...it acts as if a lght ray is normally incident on a plane mirror...wrt to B....as no refraction ocurs...use dis concept.......
1Normal incidence implies coincident image.Moreover apparent images cancel out,ans being 9cm
