In an experiment, a stationary wave is formed on a string stretched horizontally between two fixed points.
Which statement about the experiment is correct?
At certain times, the string between two nodes is horizontal with all points having zero displacement.
2 )
Each point on the string between two antinodes has an oscillation of the same amplitude.
3 )
The number of nodes is equal to the number of antinodes.
4 )
Two adjacent antinodes oscillate in phase.
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