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Lab 9: Wave Interference
INTRODUCTION
Consider the four pictures shown below, showing pure yellow lights shining toward a
screen. In 3 and 4, there is a solid wall between the light and screen, with one or two
slits cut in to let the light through.
Compare the four scenarios. We are interested in your ideas about what is going on –
you will only be graded for effort here. What do you think might be happening to the light
to create these different patterns? Discuss with your group and write your ideas in the
space below.
In scenario 1, there is only source and no barrier. Light will be shone directly to the
screen.
In scenario 2 there are two sources, the waves in interact with each other forming bright
bands and alternative dark banks indicating constructive and destructive interference
respectively.
in Scenario 3, the slit experiment it is the example of diffraction of light as it...