Question

31)Do all bodies produce sound ___

32) The voice box is also called as

a) stomach

b) heart

c) larynx

d) mouth

33) Pitch of sound is determined by its

a) frequency

b) speed

c) amplitude

d) loudness

34) Cochlea is a part of

a) hearing organ

b) sound producing organ

c) muscular organ

d) air pollution

35) 1 hertz is equal to

a) 1 vibration per minute

b) 10 vibrations per minute

c) 60 vibrations per minute

d) 600 vibrations per minute

36) A pendulum oscillates 20 times in 4 seconds. Find its time period.

a) 0.05 sec.

b) 0.001 sec.

c) 0.2 sec.

d) 0.1 sec

37) The maximum displacement of a body from its mean position is called ________ .

a) amplitude

b) oscillation

c) periodic motion d) frequency

38) Vibration is also known as

a) Vibratory motion

b) Translatory motion

c) Oscillatory motion

d) None of these

39) Voice of man is heavy compared to a woman because _____ .

a) Female vocal cord is longer

b) Male vocal cord is shorter

c) Male vocal cord is longer

d) The concept is not related

40) An object is vibrating at 50 hertz. What is its time period?

a) 0.02 s

b) 2 s

c) 0.2 s

d) 20.0 s

41 What is the length of vocal cords in men?

a) 5 mm

b) 10 mm

c) 15 mm

d) 20 mm​

Answer 1

Answer:

it is so big I don't know where start

Answer 2

Whoa you typed such big answer
Hats of to you man