Please answer-- best answer will get points!! I would appreciate an explanation/

Question

Please answer-- best answer will get points!! I would appreciate an explanation/ drawing with the answer.

I will post the link to the first part below.

http://phet.colorado.edu/en/simulation/wave-interference

4. Light Wave Diffraction (Single slit)

Reset the light wave simulation as in part 3 but use single slit instead of a double slit barrier. You may have to adjust controls to observe the interference pattern and graphs. Sketch the intensity graph to support your response.

1. What affect does larger amplitude have on the minima separation in the interference pattern?

2. What affect does a shorter wavelength have on the minima separation in the interference pattern?

3. What affect does a smaller slit width have on the minima separation in the interference pattern?

4. What affect does a smaller slit separation have on the minima separation in the interference pattern?

Explanation / Answer

so seperation = lambda L/d

1) doesnt depend on amplitude so doesnt change

2) decreasing lambda makes the sepeartion smaller since lambda is in numerator

3) doesnt depend on slit width so no change

4) smaller d means bigger sepeartion

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