(a(i))[2]
Describe how light diffracts at a diffraction grating.
(a(ii).1)
Using interference, explain the zero order maximum.
(a(ii).2)[3]
Using interference, explain the first order maximum.
(b(i))[2]
Determine the gradient of the line drawn in Fig. 5.1.
(b(ii))[2]
Use the gradient found in (i) to calculate the slit separation $d$ of the diffraction grating.
(b(iii))[1]
On Fig. 5.1, sketch a line to show the results that would be obtained for the first order maxima.
(c(i))[2]
Determine the gradient of the line shown in Fig. 5.1.
(c(ii))[2]
Use the gradient found in (i) to calculate the slit separation $d$ of the diffraction grating.
(c(iii))[1]
On Fig. 5.1, sketch a line to show the results that would be obtained for the first order maxima.