Questions:
1. Sound loudness is measured utilizing its energy. Specifically, _______ measures the relative distinction between one energy stage and a reference stage on a base-10 logarithmic scale. Fill within the clean.
2. The reference stage within the query above pertains to the brink of human listening to. In common, that is the minimal stage of sound that an organism can hear with no different supply of noise close by. What is the brink for people (in pascals)?
3. The human ear isn’t equally delicate to all frequencies of sound. So scientists modify a measured sound energy stage by an element derived from the _-_________ scale, first revealed in 1933. Fill within the blanks.
4. When an object produces a fluctuating quantity of sound over time, the equal sound stage (Leq) denotes the quantity of acoustic power averaged over that point. What is Leq known as when sound knowledge is collected at slender intervals (fractions of a second)?
5. India’s Noise Pollution (Regulation and Control) Rules 2000 specify environmental noise limits by space and time of day. In residential areas, the utmost allowable noise between 6 am and 10 pm is X dB(A) Leq. What is the worth of X?
Answers:
1. Decibel
2. Neper
3. 20 micropascals
4. Short Leq
5. 55 dB(A) Leq