Physics · May / June 2021 · Paper 41 · Question 6
0625
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Fig. 6.1 is a full-scale diagram that represents a sound wave travelling in air. direction of travel Fig. 6.1
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6(a)[1]
two points labelled C at the centre of the two compressions
6(b)[3]
6200−6500 Hz
(λ =) value from 0.051 to 0.053 (m) seen anywhere
(f =) v / λ in any form or 330 / 0.052 or 330 / 5.2 or 63
6(c)[3]
compressions / rarefactions closer or more compressions / rarefactions (in same distance)
less diffraction / spreading out
(because of) smaller wavelength or ratio wavelength / gap width smaller
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