In Fig. 7.1, the labelled parts of the electromagnetic spectrum are arranged from left to right as radio waves, microwaves, infra-red waves, 1, ultraviolet waves, X-rays, 2.
(a(i))[2]
State the names of the two regions marked 1 and 2.
(a(ii))[2]
Use words from the box to complete the sentence. Relative to the other parts of the electromagnetic spectrum, radio waves have the largest [BLANK] and the smallest [BLANK].
(b)[1]
State one additional difference between sound waves and radio waves.
(c)[4]
Describe how X and Y can use the apparatus to measure the speed of sound in air.
Worked solution & mark scheme
This 9-mark question has a full step-by-step worked solution and mark scheme. One marking point: “"visible light"” …