Electromagnetic waves
(a) Microwaves and X-rays are both electromagnetic waves - Edexcel - GCSE Physics - Question 1 - 2014 - Paper 1
Question 1
Electromagnetic waves
(a) Microwaves and X-rays are both electromagnetic waves.
(i) Which row of the table is correct for microwaves and X-rays in a vacuum?
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Worked Solution & Example Answer:Electromagnetic waves
(a) Microwaves and X-rays are both electromagnetic waves - Edexcel - GCSE Physics - Question 1 - 2014 - Paper 1
Step 1
Which row of the table is correct for microwaves and X-rays in a vacuum?
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Answer
C: Microwaves and X-rays travel at the same speed in a vacuum but have different frequencies.
Step 2
State one harmful effect of X-rays on living matter.
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Answer
X-rays can damage or ionise cells, leading to cancer or mutations.
Step 3
State one other ionising radiation in the electromagnetic spectrum.
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Answer
Gamma rays.
Step 4
State one use of an ionising radiation.
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Answer
Gamma rays are used in medical imaging and cancer treatment.
