Wave in a row of drinking straws
More than a dozen of drinking straws weighing
each are attached on a cellophane tape, evenly spaced, and the cellophane tape is fixed on the ceiling. If we flick the straw
O
at the center, then a transverse wave will be generated, propagating in both directions
A
and
B
. Which direction,
A
or
B
, will have a higher wave propagation speed?
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1 solution
Velocity of a wave is directly proportional to tension(more mass is hanging in direction A). Since in direction A the tension is more velocity will be more.