(a(i))[2]
Explain why the wavelengths are continuously distributed.
(a(ii))[2]
Explain why there is a sharp cut-off at short wavelength.
(b(i))[2]
State what the hardness of an X-ray beam means.
(b(ii))[2]
State what controls hardness.
(c(i))[1]
Suggest why, when producing an X-ray image, long-wavelength X-ray radiation is a greater health hazard than short-wavelength radiation.
(c(ii))[1]
Suggest a way in which this hazard is minimised.