It is possible to recognize a person in the dark by simply hearing his unique voice. It is because of the:

(A) Pitch
(B) Frequency
(C) Time period
(D) Quality

Q. A property of sound that allows their ordering on a frequency-related scale is called:
(A) Quality of sound
(B) Frequency
(C) Pitch
(D) Loudness

Q. Instruments have their origin in variety of pitch standards are:
(A) Distorting
(B) Transposing
(C) Amplifying
(D) Musical

Answers:
1. (A) Pitch
2. (C) Pitch
3. (B) Transposing