(a(i))[1]
Determine the wavelength of the wave in the shallow-water region.
(a(ii))[2]
Calculate the frequency of the wave generated.
(a(iii))[2]
Determine the speed of the water wave in the shallow-water region.
(a(iv))[1]
On Fig. 10.2, draw lines to indicate how the wavelength, the frequency and the speed of the water wave change as it moves into deep water.
(a(v))[3]
Draw the wavefronts in deep water on Fig. 10.3.
(b(i))[2]
State the name of four colours in the visible spectrum and arrange them from the smallest wavelength to the largest wavelength.
(b(ii))[4]
Complete Fig. 10.4 to show how a narrow beam is formed from these rays and how a spectrum is formed on the screen. Label your diagram.