Question

State whether True or False:
1. Sound waves cannot travel through vacuum.
2. The maximum displacement of particles of the vibrating material from their mean
position is known as its frequency.
3. Sound insulation helps in reducing noise pollution.
4. Dog can hear the sound above 20000 Hz.
5. The amplitude of the voice of a man is more than that of a woman.​

Answer 1

Answer:

1.true

2.false

3.true

4.true

5.true

Answer 2

Answer:

1.f

2 ?

3.t

4.t

5.f

these are the answer of questions which you have have asked if any mistake does appear so please do correct