Activities

• Discuss what happens when the distance a between source changes. Try a = 0.3, 0.2 and 0.1, for instance.
• What happens if Δφ = 180?
• What happens if the amplitudes are different?
• And when the sources are incoherent?
  • Set a positive value for random, so that every so many steps the phase changes at random.
  • By setting average (somewhat) larger than random, you can see (very slowly) what one can expect from to incoherent sources. Sources may also be incoherent because they have different wavelengths (i.e., different frequencies, since we assume a single phase velocity).