IB Physics Phase of a wave
/An important term applied to an oscillating particle and a wave is phase. Below is a tutorial sheet on phase.
- Two points on a progressive wave are in phase if they have the same displacement and velocity. True or false?
- Two points on a progressive wave are in phase if the distance between the points is a whole number of wavelengths. T or F?
- P and Q are two points on a progressive wave. The gradients of the tangents to the wave at P and Q have the same value. Are P and Q in phase?
- What is the phase difference between two points on a progressive wave of wavelength 8.0 cm that are 3.0 cm apart?
- The displacement from the equilibrium caused by a progressive wave is given by the equation y = 2sin(2x - t). What is the phase difference when t = 1 between points on the wave at x = 3 and x = 1?
- X and Y are two points on a standing wave. X is at a distance 𝜆/4 from a node and Y a distance 𝜆/3 from this same node, both points being to the right of the node. Are X and Y in phase?
- R and S are two points on a standing wave. The gradients of the tangents to the wave at R and S are different. Could R and S be in phase?
- What is the phase difference between two points on a standing wave of wavelength 6.0 cm that are 2.0 cm apart?
- The displacement from the equilibrium caused by a standing wave is given by the equation y = 2sin(3x)cos(2t). What is the phase difference when t = 1 between points on the wave at x = 4 and x = 1?
