(a(i))[1]
From Fig. 4.1, state one wave quantity that is identical for Y and Z.
(a(ii))[1]
From Fig. 4.1, state one wave quantity that is different for Y and Z.
(b)[1]
State and explain if waves Y and Z are coherent.
(c)[1]
Determine the phase difference separating the waves.
(d)[1]
At P, the two waves superpose. Use Fig. 4.1 to determine the resultant displacement when $t = 0.75\,\text{ms}$.
(e)[2]
The intensity of wave Y at point P is $I$. Determine, in terms of $I$, the intensity of wave Z.
(f)[3]
The speed of wave Z is $330\,\text{m s}^{-1}$. Determine the wavelength of wave Z.