GCSE Questions - Electromagnetic Spectrum

Q9. Infrared and microwaves are two types of electromagnetic radiation.


(i) State one example of the use of each type of radiation for communication.

[2 marks]

(ii) Some of the properties of infrared and microwaves are the same.

State two of these properties.

[2 marks]

(b) In 1964, physicists discovered microwave radiation that filled the universe.

(i) Name this type of radiation.

[1 mark]

(ii) State the importance of this discovery made by the physicists.

[1 mark]

(Total 5 marks)