problem 1: Illustrate the following:
a) Transverse waves
b) Longitudinal waves
e) Time period
problem 2: What do you mean by the term sound? Describe audible, infra-sonic and ultra-sonic sounds?
problem 3: What do you mean by noise? Describe the decibel scale with the concept of sound pressure level.
problem 4: Distinguish between the line source and point source.
problem 5: What are various indices of the noise pollution?
problem 6: Illustrate the noise pollution measured? Describe the standards of noise pollution in most of the countries?