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3 marksParticulate Nature of Electromagnetic Radiation

CAPE Physics Unit 2 · 2010 · Paper 2 · Question 6(b)(iii)

An X-ray tube in Figure 5 operates at 50 kV and current 1.2 mA.

Calculate the cut-off wavelength of the X-rays emitted.

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Other parts of this question

  1. 6(a)(i)With the aid of a sketch graph, clearly explain Continuous X-ray spectrum and how it originates.[3 marks]
  2. 6(a)(ii)With the aid of the sketch graph, clearly explain Characteristic X-ray spectrum and how it originates.[2 marks]
  3. 6(a)(iii)With the aid of the sketch graph, clearly explain Cut-off wavelength and how it originates.[2 marks]
  4. 6(b)(i)Calculate the electrical power input.[2 marks]
  5. 6(b)(ii)Calculate the speed of the electrons when they hit the target.[3 marks]

More practice: the rest of this paper · more Particulate Nature of Electromagnetic Radiation questions · all CAPE Physics Unit 2 past papers