A drum and a whistle are sounded one after the other during a school assembly. The drum produces vibrations of frequency 50Hz, while the whistle is found to have a time period of 0.0005s.
(i) Explain the relationship between the time period and frequency of a sound wave.
(ii) Calculate the time period of the vibrations produced by the drum.
(iii) Determine the frequency of the sound produced by the whistle.
(iv) Which of the two instruments produces the sound of higher pitch? State the reason clearly.