A black coloured shadow of the glass slab will be formed on the screen.
Question 21
In Fig., a flower made of thick coloured paper has been pasted on the transparent glass sheet. What will be the shape and colour of shadow seen on the screen?
Question 24
A sheet of plywood, a piece of muslin cloth and that of a transparent glass, all of the same size and shape were placed at A one by one in the arrangement shown in Fig. Will the shadow be formed in each case? If yes, how will the shadow on the screen be different in each case? Give reasons for your answer.