Page 45 - SP015 Past Years PSPM Chapter 6 -14 Ver 2020

PSPM SP015

PSPM 2009/2010 SF017/2 No. 12(c)

16. A progressive wave is represented by equation

y = 20 sin (150t – 1.8x)

where y is the displacement in cm, t is the time in second and x is the distance in meter.
Calculate the wave velocity.
[3 m]

PSPM 2010/2011 SF017/2 No. 5

17. The equation of a progressive wave is given as
y = 2 sin (10t + 5x) cm
where t is in second and x is in cm. Determine the propagation velocity of the wave.

[4 m]

PSPM 2012/2013 SF016/2 No. 7(b)

18. A progressive wave is represented by the following equation:
  
y 10 sin  t   x
 4 

where y is in centimeter and t is in second. Determine

(a) the direction of wave propagation. [1 m]

(b) the wavelength. [3 m]

PSPM 2013/2014 SF016/2 No. 7(a)

19. A progressive wave is represented by equation,

y (x, t) = 1200 sin (314t – 0.42x)

where x and y are in cm and t is in second. Determine the

(a) velocity of the wave. [2 m]

(b) maximum velocity of the particle. [2 m]

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