IB Physics. Is constructive interference always a maximum value?
/A tutorial sheet on interference follows.
- At a point on the screen constructive interference occurs in a Young's double slit experiment. Do crests always meet crests at this point?
- At another point on the screen destructive interference occurs. Does a crest always coincide with a trough at this point?
- A graph is drawn of the change in pressure with distance as a sound wave passes. Is this graph the same as the displacement of the particles from their equilibrium position?
- When a standing wave in an open pipe is drawn we have antodes at the open ends. What are we plotting if there are antinodes at the open end?
- The first harmonic standing wave forms in an open pipe. Draw a graph showing the change in pressure along the length of the pipe. At what point in the pipe does the pressure change have its maximum value?
