This bingo card has 25 words: Mechanical, Rarefaction, Compression, Amplitude, Crest, Transverse, Non-mechanical, Trough, Wavelength, Application of echo, longitudinal, Time period, Reasons of shining diamonds, Time period and frequency relation, Equation of wavelength, Equation of velocity, Frequency range of hearing in humans, Diffraction, Unit of frequency, Refraction, Snell's law, Incident and reflected angle relation in reflection, Critical angle, Total internal reflection and Refractive index.
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With players vying for a you'll have to call about __ items before someone wins. There's a __% chance that a lucky player would win after calling __ items.
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