Question

which of following is true about sound wave???
1)speed of sound is higher in iron then in nitrogen...
2)speed of sound is constant...doesn't depends on medium....
3) temperature and pressure condition doesn't affect the speed of sound...
4)speed of sound is inversely proportional to the destiny of medium....​

Answer 1

Answer:

1- true

2-false

3- false

4-true

Answer 2

Answer:

4, this may be ur ans friend...