A glass slab is placed over a page in which letters are printed in different colours. Will the image of all the letters lie in the same plane?

59 Name one factor on which the direction of bending of a ray of light depends. 60 A ray of light while traveling from a denser to a rarer medium, is incident at critical angle on the interface. What is the angle of refraction in the rarer medium? 62 Does the apparent depth of a tank of water change, normally. 63 For which colour of white light is the refractive index of a transparent medium is maximum and minimum.