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GCSE Questions - Electromagnetic Spectrum

Q5. Different parts of the electromagnetic spectrum are useful for different methods of communication. The diagram below shows a transmitter emitting two electromagnetic waves, L and M.

(a)

(i) Wave L is used to send a signal to a satellite. Which part of the electromagnetic spectrum does wave L belong to? [1 mark]

(ii) What name is given to the process that occurs as wave L passes into the ionosphere? [1 mark]

(b) Wave M is reflected by the ionosphere. On the diagram above:

(i) Draw the path of wave M until it reaches the receiver. [2 marks]

(ii) Draw a line to show the normal where wave M meets the ionosphere. Label the line N. [1 mark]

(c) Give two properties of all electromagnetic waves. [2 marks]

(Total 7 marks)