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Figure 18 shows the parts of an x-ray tube.

      

Figure 18 shows the parts of an x-ray tube.
physics652017852.jpg
(a) Explain why:
(i) A potential difference is applied to the filament.
(ii) A high potential difference is applied between a cathode and the anode.
(iii) Most of the tube is surrounded by lead.
(b) State how the resulting x -rays are affected by increasing the potential difference between the anode and the cathode.

  

Answers


John
(a) (i) To produce more heating effect on the cathode to produce electrons

(ii) To accelerate the electrons towards the target.

(iii) To absorb x-rays produced at unsuitable angle

(b) The speed, hence the energy of the x-rays produced in increased.
johnmulu answered the question on June 6, 2017 at 05:57


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