The diagram shows the parts of the electromagnetic spectrum - Edexcel - GCSE Physics - Question 6 - 2012 - Paper 1
Question 6
The diagram shows the parts of the electromagnetic spectrum.
(i) Which parts of the electromagnetic spectrum are used for both communication and cooking?
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Worked Solution & Example Answer:The diagram shows the parts of the electromagnetic spectrum - Edexcel - GCSE Physics - Question 6 - 2012 - Paper 1
Step 1
Which parts of the electromagnetic spectrum are used for both communication and cooking?
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Answer
The correct answer is C: microwaves and radio waves. Microwaves are used in cooking (e.g., microwave ovens) and in communication (e.g., mobile phones, satellite signals). Radio waves are also used in communication (e.g., FM/AM radio) but are not typically used for cooking.
Step 2
Visible light has a
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Answer
The correct response is B: higher frequency than ultraviolet. Visible light occupies the range of wavelengths between ultraviolet and infrared; it has higher frequencies than ultraviolet light.
