Noise is measured in
A). Watt
B). REM
C). Centigrade
D). Decibel
Decibel
We measure sound intensity (also referred to as sound power or sound pressure) in units called decibels.
1. Which of the following is a vector quantity?
2. The fuse in pure domestic electric circuit melts when there is a high rise in
3. What is the source of energy for the water cycle?
4. Which type of reaction produces the most harmful radiation
5. The device used for locating submerged objects under sea is
6. In a freezer ice cubes will be formed more quickly in trays made of
7. An oil drop spreads over water because
8. The pitch of sound depends on its
9. Which of the following is preferred for accelerating electrons?