(i)A musical instrument note is depicted in Figure IV.
(ii) A faint (or feeble) note is shown in Figure I.
(iii) A bass (or low frequency) note is shown in Figure 2.
The sketches I to IV in figure show sound waves, all formed in the same time interval.
Which diagram shows
(i) a note from a musical instrument,
(ii) a soft (or feeble) note,
(iii) a bass (or low frequency) note.