Sub-topic 1
2013 · National Preliminary
Free
Polarization is possible only for transverse, not longitudinal, waves (true/false)
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Sub-topic 2
2013 · National Preliminary
Premium
Wave speed from wavelength and period
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Sub-topic 3
2013 · National Quarterfinal
Premium
Riddle: interference of waves (constructive/destructive)
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Sub-topic 4
2016 · National One-Eighth
Premium
Riddle: refraction at a boundary between media with different wave speeds
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Sub-topic 5
2016 · National Preliminary
Premium
Wave speed from frequency and wavelength (true/false)
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Sub-topic 6
2016 · National Preliminary
Premium
Wave speed from frequency and wavelength (true/false, mismatched value)
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Sub-topic 7
2016 · National Preliminary
Premium
Wavelength from speed and frequency (true/false)
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Sub-topic 8
2018 · National Preliminary
Premium
Frequency of a transverse wave from its angular frequency in the wave equation
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Sub-topic 9
2022 · National Preliminary
Premium
True or false: all em waves travel at the same speed in the same medium
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Sub-topic 10
2022 · National Preliminary
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True or false: all em waves travel at the same speed in vacuum
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Sub-topic 11
2022 · National Preliminary
Premium
True or false: all em waves travel at the same speed in vacuum
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Sub-topic 12
2020 · National One-Eighth
Premium
Wavelength is 2 pi over the wave number k, not k itself (true/false)
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Sub-topic 13
2021 · National Quarterfinal
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Wavelength of a progressive wave from its wave-number k in the standard sinusoidal form
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