1011 past contests
Topic 10 · Critical temperature and pressure of water
Topic 37 · Smallest mass to balance a uniform meter stick given one hanging mass
Topic 26 · Compton wavelength shift at a given scattering angle
Topic 26 · Threshold photon energy for electron-positron pair production
Topic 12 · Exact defined values of the si defining physical constants
Topic 47 · Chromatic dispersion as the cause of pulse broadening in single-mode optical fiber
Topic 20 · Nucleon number density of a nucleus from the nuclear radius parameter r0
Topic 20 · Periodic group of the daughter nuclide after a sequence of alpha and beta decays
Topic 22 · Total relativistic energy of a moving particle in electron volts
Topic 21 · Ground state energy of a particle confined in a one-dimensional infinite potential well
Topic 49 · Wavelength from a diffraction grating with oblique incidence (second order), opposite-side geometry
Topic 47 · Overall angular magnification of a compound microscope with final image at infinity
Topic 5 · Electric field on the axis of a uniformly charged non-conducting disk
Topic 43 · Minimum dielectric thickness for a capacitor to withstand a given voltage without breakdown
Topic 52 · Speed from a time-dependent acceleration vector by integration
Topic 22 · Time dilation of a moving unstable particle's mean lifetime
Topic 49 · Wavelength from a diffraction grating with oblique incidence (second order)
Topic 3 · Force as the negative gradient of a radial potential energy function
Topic 52 · Speed of one particle relative to another from vector velocities