APhO Problems and Solutions

The Asian regional olympiad, first held in Indonesia in 2000. Teams are eight students rather than the five IPhO allows, and the exams are widely considered harder than IPhO's.

2016

Hong Kong

Theory3 problems
Experimental2 problems
  • 4ExperimentalReflected Optical Diffraction Patterns from One-Dimensional StructuresProblemSolution
  • 5ExperimentalReflection Phase Shift of MetalProblemSolution

2008

Mongolia

Theory3 problems
Experimental1 problemThe Physics of Sound WaveProblem
  • 4ExperimentalThe Physics of Sound WaveProblem

2007

China

Theory3 problems
Experimental2 problems
  • 4ExperimentalUsing the Interference Method to Measure the Thermal Expansion Coefficient and Temperature Coefficient of Refractive Index of GlassProblemSolution
  • 5ExperimentalMeasurement of Liquid Electric ConductivityProblemSolution

2005

Indonesia

Problems3 problems
Experimental2 problemsProblemsSolutions
  • 4Determination of Shapes by Reflectionnot published
  • 5Magnetic Braking on an Inclined Planenot published

2002

Singapore

Theory3 problems
Experimental2 problems
  • 4ExperimentalPart A: Measurement of Reflectance and Determination of Refractive IndexProblem
  • 5ExperimentalPart B: Frequency of Vibration of a Tuning ForkProblemSolution

2000

Indonesia

Problems3 problems
Experimental2 problemsProblemsSolutions
  • 4Determination of the Density of Oilnot published
  • 5Determination of the Stefan-Boltzmann Constantnot published