Simple harmonic motion-experiment

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The discussion focuses on a cantilever experiment designed to measure the time of fixed oscillations as the length of a ruler with a fixed mass increases. Key limitations identified include air resistance and the impact of increased weight on the force required for oscillation due to gravity. Suggestions for improvement emphasize the need for clearer experimental descriptions and the inclusion of sketches to enhance understanding. Participants express confusion over the experiment's details, indicating a need for better clarity. Overall, enhancing the experiment's presentation could lead to more accurate results and easier comprehension.
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Homework Statement


I was being asked to find the limitation and possible ways to improve the following experiment

Cantilever experiment to record the time of fixed oscillations as the length of the ruler with a fixed mass increases each time.

The Attempt at a Solution


Limitation-air resistance, weight affects the force needed to swing as the gravity is pulling down harder because of the increased length of arm.
Improvement-?
 
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The description the experiment could be better, maybe a sketch included. I had to read it several times and I'm not clear what is going on.
 
Thread 'Correct statement about size of wire to produce larger extension'

Thread 'Correct statement about size of wire to produce larger extension'

The answer is (B) but I don't really understand why. Based on formula of Young Modulus: $$x=\frac{FL}{AE}$$ The second wire made of the same material so it means they have same Young Modulus. Larger extension means larger value of ##x## so to get larger value of ##x## we can increase ##F## and ##L## and decrease ##A## I am not sure whether there is change in ##F## for first and second wire so I will just assume ##F## does not change. It leaves (B) and (C) as possible options so why is (C)...
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