Distortion of Experimental Results Caused by Equipment

NOTE: THIS POST WAS ACCIDENTALLY PUBLISHED AND HAS STILL A LARGE AMOUNT IF WORK TO BE CARRIED OUT ON IT.

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It is essential when carrying out experiments, to understand how and why the equipment may effect the results. Consider the following drawing.

Swing Spectrum

When you view  light passing through a slit,  what you actually see depends on the angle that you are viewing the slit.