What is the SI unit of intensity of sound?
A). Decibel
B). Newton
C). Heartz
D). Tesla
Decibel
Decibel is the SI unit of intensity of sound.
1. A NOT gate can be implemented by:
2. The frequency of ultrasound wave is typically
3. Which of these is true of all simple machines?
4. When a barometer reading suddenly recedes, it indicates that climate–
5. What apparatus is used to locate a submerged object?
6. Which of the following is not an intrusive igneous body?
7. The atmospheric air is held to the Earth by :
9. 1 m/s equals ________ km/hr
10. Which one of the following is not a?result of surface tension?