Advertisements
Advertisements
प्रश्न
Explain the Term: Decibel
Advertisements
उत्तर
The unit to measure sound is called decibel.
APPEARS IN
संबंधित प्रश्न
Suggest measures to avoid noise pollution in classroom.
Write any three ways by which noise pollution affects the human body adversely. List any three steps that should be followed in order to reduce noise pollution.
Look at a cartoonist's presentation of a kind of pollution given below.
![]() |
- Name the kind of pollution.
- List the sources of pollution.
- Mention any two harmful effects of this pollution.
Noise pollution is a ______ issue.
How is noise a source of pollution?
Which of the following may be caused by noise?
Mention a few measures to be taken to reduce the effect of noise pollution.
Boojho saw a cracker burst at night at a distance from his house. He heard the sound of the cracker a little later after seeing the cracker burst. Give reason for the delay in hearing the sound.
Suggest three measures to limit noise pollution in your locality.
What is the name of the sound produced by irregular vibrations?

