Double Slit Experiment

A double slit experiment with 315nm light has a slit width of 113\(\mu\)m, and a slit separation of 384nm

Part 1

Draw a diagram showing the widths of the two slits and their separation.

Upload a file named ‘Slit1’ and must be a png.

Answer Section

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Part 2

If the screen is 10m away, find the location of the edge of the central maximum from the centre of the single slit diffraction pattern, assuming the small angle approximation is valid.

Answer Section

Please enter in a numeric value in .

Part 3

When observing a double-slit pattern, you would notice a bright line at a specific location. However, in the single-slit pattern, destructive interference occurs due to the width of each slit. Given this information, at the same location, the resulting pattern will be;

Answer Section

• {‘value’: ‘bright’}

• {‘value’: ‘dark’}

• {‘value’: ‘no pattern appears’}

Part 4

Is there a bright line of the double slit pattern that coincides with the underlying single slit pattern’s first minimum? If so, at what diffraction order, \(m\) does this occur?

Answer Section

Please enter in a numeric value in .

Part 5

Draw the combined double slit single slit pattern for \(m\) = -8 to \(m\) = 8.

Upload a file named ‘Slit2’ and must be a png.

Answer Section

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Attribution

Problem is licensed under the CC-BY-NC-SA 4.0 license.