State the principle of superposition.
State two necessary conditions for a stationary wave to be set up on a string.
A stationary wave is made up of nodes and antinodes.
State what is meant by:
(i) a node
[1]
(ii) an antinode.
[1]
Fig 1.1 shows a stationary wave on a string which is fixed at both ends.
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Fig. 1.1
On Fig. 1.1, label the nodes (N) and antinodes (A).
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