Noise Pollution
Noise Pollution
Noise Pollution: Unpleasant, discomfort-causing sound from any source is called noise. Sustained presence of harmful, unwanted, or annoying noise in the environment is called noise pollution.
Source Of Noise Pollution: Any object that produces a noise is a potential source of noise pollution. Some examples are automobiles, blaring loudspeakers, television and radio (when played at a loud volume), air coolers, and air conditioners.
Harmful Effects Of Noise Pollution: Noise has a jarring effect on us. The effect of noise pollution on people should not be underestimated. Here are some of the harmful effects of noise pollution:
Measures To Reduce Noise Pollution: Minimizing noise pollution requires a certain degree of discipline from all of us. Some of the measures one should adopt to keep noise pollution under control are given below:
Noise and Music : The sound which produces pleasant effects on our ears and mind is called musical sound e.g. the sound produced by musical instruments, such as piano, violin, flute etc. is musical sound. The sound level in musical sound usually lies between 10db and 30db.
Musical sound differ from noise : The wave form of musical sound is present in regular manner, while it is noise it is irregular. The frequency of musical sound is high and of noise is low. The nature of vibration of musical sound is regular and periodic, while in noise it is irregular and non periodic.
The effect of musical sound in ear and mind of a person is pleasent and comfortable and the effect of noise is displeasing and discordant.
The sound which produces pleasant effects on our ears and mind is called _______________. | |||
| Right Option : C | |||
| View Explanation | |||
The amplitude of vibration and its frequency can change suddenly in a __________________ | |||
| Right Option : C | |||
| View Explanation | |||
The loudness of sound in the range of 15 B - 16 B is ________________ | |||
| Right Option : D | |||
| View Explanation | |||
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