Page 46 - SP015 Past Years PSPM Chapter 6 -14 Ver 2020
P. 46
PHYSICS PSPM SEM 1 1999 - 2017
PSPM 2014/2015 SF016/2 No. 7(a)(ii)
20. y (m)
0.12
0.4 0.8 1.2 1.6 x (m)
y (m)
0.12
t (s)
1 2 3 4
FIGURE 10.3
FIGURE 10.3 shows the graphs of displacement versus distance and displacement
versus time of a progressive wave travelling in the positive-x direction. Write the wave
equation. [3 m]
PSPM 2015/2016 SF016/2 No. 7(a)
21.
16 cm
4 cm
FIGURE 10.4
-1
FIGURE 10.4 shows a progressive wave travelling at a speed of 24 m s to the right.
(a) Determine the wave number. [2 m]
(b) Calculate the frequency of the wave. [2 m]
(c) Write the wave equation. [2 m]
46
