When it comes to the Young's Double Slit Experiment, I'm just wondering

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In the Young's Double Slit Experiment, measuring the distance between adjacent fringes directly can lead to inaccuracies due to the limitations of measurement tools like rulers. Taking an average distance across multiple fringes minimizes errors and enhances precision. This method reduces the impact of any inconsistencies that may arise from individual measurements. The discussion emphasizes the importance of accuracy in scientific experiments. Accurate measurements are crucial for reliable results in physics experiments.
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For the Young's Double slit Experiment, I'm just wondering when it comes to finding the distance between the adjacent fringes (shown on the screen), why can't we just measure directly the distance between the adjacent fringes instead of having to measure the distance between 5 fringes and dividing by 5. Can there be inconsistencies when it comes to measuring directly the distance between adjacent fringes? I'm really confused about this. HELP!
 
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the only reason is one of being accurate. My guess is that you did this using a ruler, which is not the most precise of instruments, and doing this reduces your imprecision five-fold.
 

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