A student strikes two tuning forks to study their vibrations.
(i) Define the terms (a) time period and (b) frequency of a sound wave.
(ii) One fork produces 256Hz. Calculate the time period of its vibration.
(iii) The second fork has a time period of 1.25ms. Determine its frequency.
(iv) Which fork gives the sound of higher pitch? Give a reason for your answer.