Which of the following statements is incorrect with respect to music ?

1. It is pleasant to the ears.
2. Its waveform is irregular.
3. The sound level is low.
4. It is produced by periodic vibrations.

Out of the following, which instrument emits a monotone ?

1. guitar
2. flute
3. piano
4. tuning fork

The voice of a woman is of …………… pitch than that of a man.

1. lower
2. higher
3. equal
4. cannot say

The quality of a musical sound depends on :

1. number of subsidiary notes
2. relative amplitudes
3. both (1) and (2)
4. none of the above