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Are you aware that in most elementary physics labs students are
introduced to waves via a vibrating string. On one side a vibrator,
on the other (about 2 m away) a pulley and the load to control
tension. Students try to create standing waves with different
number of loops by changing the load or frequency.
1) Do you think that this may be a source of misconceptions
about waves?
2) If so then why is this experiment used nearly everywhere?