Waves the electromagnetic spectrum
2 marks · EasyThe electromagnetic spectrum is a continuous spectrum. Answer the following questions.
State what is meant by a 'continuous spectrum'.
Is there a clear boundary between types of electromagnetic waves? Answer yes or no.
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(a) There are no gaps; all possible wavelengths and frequencies are included. · must show Reference to all wavelengths/frequencies included, no gaps
(b) No · must show No clear boundary
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Marking points
B1 (a) · 1 mark · States that the spectrum includes all possible wavelengths and frequencies, or that there are no gaps between wave types.
B1 (b) · 1 mark · States correctly that there is no clear boundary between wave types (No).
Worked solution
(a) A continuous spectrum means all wavelengths and frequencies are included; there are no gaps.
(b) No, there is no clear boundary.