Question

C. State if the following statements are true or false. Correct the statement if it is false.
1 Sound travels fastest in vacuum.
2. The human ear can hear two sounds separately only if they reach the ear after an interval
of 1/20th of a second.
3. Pitch of a sound depends on its frequency.
The pitch of a stringed instrument depends on the tension in the string.
5. Sound produced by different whistles are same.
6. Sounds below 50 dB cause noise pollution and are harmful.
7. A flute produces sound due to vibration of air column inside it.
8. Music has a disturbing effect on health and behaviour of a person.
5. Percussion instruments produce sound due to the vibration of thin metal strips.
10 Men have longer vocal cords than women and children. Please it is very urgent ​

Answer 1

Answer:

1. true

2.false

3.true

5.false

6.false

7.true

8.flase

5.true

10.true

Answer 2

Answer:

1.true

2 . true

3. true

4.false . the pitch of a string depends on the frequency

5. false . it depends on the size of the hole in the whistle and the pressure of the blowing

6. false . sounds below 50db and above 20db are not harmful

7. true

8.true

9.true

10.true

you asked for the correction of the false statements . i gave it yet you didn't mark me as brainliest . its ok ......