Diagram shows a beam of white light striking one face of a prism.
(a) complete the diagram to show the effect of the prism on
the beam and to show what is seen on the screen.
(bA slit is placed in between the prism and the screen to
pass only the light of green colour. What will be your
oservation on the screen?
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It seems that you forgot to attach the image to the question.
So post the query again in a complete way so that we can help you ASAP.
Regards