Physics · May / June 2024 · Paper 41 · Question 5
0625
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5(a)[2]
any two from:
(longitudinal) vibration / oscillation in wave parallel to propagation direction / direction of traveltransverse wave vibrates / oscillates perpendicular to propagation direction / direction of travel(longitudinal) consists of compressions and rarefactionstransverse wave consists of crests / peaks and troughs(longitudinal) needs a medium (to travel)5(b)(i)[1]
P-wave AND it is longitudinal
5(b)(ii)[2]
1.8 × 104 m OR 18 km
1.5λ OR 1.5 × 1.2 × 104 OR 1.8 × 10N
5(b)(iii)[3]
v = f λ OR v= λ / t OR (t =) λ / v OR f =
44600 / 1.2
10
OR (t / 5 =) 1.2 × 104 / 4600 OR (t =) 6(.0) × 104 / 4600
13 s
t = 1 / f OR (time for one wave = ) 2.6 (s)
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