Physics · May / June 2020 · Paper 41 · Question 6
0625
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The question as text
The speed of sound in air is 340 m / s.
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6(a)[2]
(λ =) v / f OR 340 / 20 000 OR 340 / 20
0.017 m AND 17 m
6(b)[3]
(longitudinal wave) vibration direction parallel to propagation / energy travel direction
transverse wave vibration direction perpendicular to propagation / energy travel direction
consists of rarefactions AND compressions
6(c)[3]
diffraction mentioned
wavelength of sound from drum / low frequency sound greater (than wavelength of high frequency sound)
more diffraction of sound from drum OR less diffraction of high frequency sound
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