The diagram shows X-rays being produced when fast moving electrons hit a metal target - Edexcel - GCSE Physics - Question 2 - 2013 - Paper 1
Question 2
The diagram shows X-rays being produced when fast moving electrons hit a metal target.
(i) Complete the sentence by putting a cross (✗) in the box next to your answ... show full transcript
Worked Solution & Example Answer:The diagram shows X-rays being produced when fast moving electrons hit a metal target - Edexcel - GCSE Physics - Question 2 - 2013 - Paper 1
Step 1
Complete the sentence by putting a cross (✗) in the box next to your answer.
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Answer
The X-rays that have most energy have the highest frequency. This is because energy of electromagnetic waves is directly proportional to their frequency. Therefore, amongst the options given, the correct choice is B.
Step 2
Complete the sentence by putting a cross (✗) in the box next to your answer.
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Answer
Electrons travel to the target because it is negatively charged. The electrons are themselves negatively charged; hence they are attracted towards a positively charged anode. Thus, the correct answer is B.
