ANIMATION IS HERE: http://www.compadre.org/Physlets/optics/prob38_4.cfm The inte

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ANIMATION IS HERE: http://www.compadre.org/Physlets/optics/prob38_4.cfm

The intensity dips to zero at any nonzero integer. That happens when sine-nNa This allows us (i.e., you the aspiring physicist) to solve for any quantity that we want in terms of other quantities that we know or have measured. In this activity, we measure the angle with a known slit width of the most convenient minimum (usually the first, m-1), and calculate the wavelength of light that goes through the slit. Go to this link; Physlet Physics Chapter 38 4 Wavelength of light through a single slit This animation requires input of a slit width ranging from 4 to 6 micrometers. ( recommend using 4, 5, and 6, and average your results to get the best accuracy.) There is a protractor in purple provided in the lower left corner that you can drag to the slit for measuring the angle. Make sure and extend the protractor as far as possible to get the best reading for the angle; if you leave it as a small display your accuracy will not be very good This animation requires input of a slit width ranging from 4 to 6 microm eters (I recommend Nebe

Explanation / Answer

Wavelength is defined as the length (on the x-axis in meters) from the one peak of the wave to the next.

Step 1: Find the x-axis value corresponding to top peak of wave (in red). This value is x=0.

Step 2: Find the x-axis value corresponding to the next top peak of wave (in red). This value is x=1

Step 3: Find the difference in the x values in Steps 1 & 2. [1 meter - 0 meter= 1 meter]

So the wavelength is 1 meter.

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