Q.

Decibel is a term connected with :

A. air
B. water
C. sound
D. soil
Answer» C. sound
Explanation: The decibel (dB) is a logarithmic unit that indicates the ratio of a physical quantity (usually power or intensity) relative to a specified or implied reference level. A ratio in, decibels is ten times the logarithm to base 10 of the ratio of two power quantities.
2.8k
0
Do you find this helpful?
14

View all MCQs in

Physics

Discussion

No comments yet