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[13/02, 07:22] Haribol: (a) Wavelength – Wavelength can be defined as the distance between two consecutive rarefactions or two consecutive compressions. The SI unit of wavelength is metre (m).
(b) Frequency – Frequency is defined as the number of oscillations per second. The SI unit of frequency is hertz (Hz).
(c) Amplitude – Amplitude can be defined as the maximum height reached by the trough or crest of a sound wave.
(d) Time period – The time period is defined as the time required to produce one complete cycle of a sound wave.
[13/02, 07:31] Haribol: Q.Which characteristics of the sound help you to identify your friend by his voice while sitting with others in a dark room?
*Quality of sound* is a characteristic that helps us identify the voice of a particular person.
Two people may have the same pitch and loudness, but their qualities will be different.
