GCSE level questions on the Earth in Space

Q11. 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)