A metre-long tube open at one end, with a movable piston at the other end, show
resonance with a fixed frequency source (a tuning fork of frequency 340 Hz) when
the tube length is 25.5 cm or 79.3 cm. Estimate the speed of sound in air at the
temperature of the experiment. The edge effects may be neglected.
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Answer:
lamda/4 =l1=25.5
lamda =4into25.5=102cm
346.8m
Explanation:
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