defence exam Indian Army Nursing Assistant Mock Test Series 2025 Physics Waves Traveling Sound Waves
Which of the following statement is/are incorrect?
- The speed of sound is not affected by the change in pressure provided the temperature is kept constant.
- If the temperature of the air is changed then the speed of sound is also changed.
- The speed of sound decreases with increasing humidity.
1
1 only
2
2 and 3 only
3
1 and 3 only
4
3 only