1) How fast would a particle of mass 0.1 g need to travel to have the same linear momentum as a photon of radiation of wavelength 633 nm?
2) Suppose a particle has a wavefunction y(x) = N exp(-ax2). Sketch the form of this wavefunction. Where is the particle most likely to be found? At what values of x is the probability of finding the particle reduced by 75% from its maximum value?