Question 1
Question (a)
(a)
The solid line represents the standing wave at time t and the dotted line represents the standing wave at an instant later. The dot is the equilibrium position of a particle P in the pipe. The up arrow indicates displacements to the right and the down arrow displacements to the left.
On the diagram, draw
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Question (i)
(i)
a dot to indicate the approximate position of P at time t,
[ 1 ]
Question (ii)
(ii)
an arrow to indicate the velocity of P at time t.
[ 1 ]