6 a) White light shines into a prism and forms a spectrum on a screen. What effect, if any, would
you see if a red filter were placed in the path of
the white light?
[2]
b) Would it make any difference if the filter were
placed at the other side of the prism near the
screen?
[1]
c) The screen is changed to a green one. What might
you see now?
[2]
[Total 5)