Question

e.
The quality of sound produced by tuning fork is different from that produced by
d.
a musical instrument because of difference in-
i. Amplitude
ii. Frequency
iii. Harmony
iv. All of these
The sound produced by humans is controlled by-
i. Mouth
ii. Vocal cord
iii. Voice box
iv. All of these
f. The speed of sound is minimum in-
i. Solid
ii. Liquid
iv. None of these
iii. Gas​

Answer 1

Answer:

2) voice box

1)amplitude

3) gas

Answer 2

Answer:

1) Musical instruments

2) Harmony

3) Vocal cord

4) Solid