Question

The townhall building is situated close to Boojho’s house. There
is a clock on the top of the townhall building which rings the
bell every hour. Boojho has noticed that the sound of the clock
appears to be much clearer at night. Explain.


NCERT Class VIII
Science - Exemplar Problems

Chapter 13. Sound

Answer 1

Sound travels in the form of wavelength.

When During the daytime there are lots of sounds coming from the surroundings and it is generally difficult for us to concentrate on any one of it.

This is the scenario during the day time.

But in heat night the surrounding is generally quiet and that is the reason Boojho can hear the sound at much more intensity.

Answer 2

When During the daytime there are lots of sounds coming from the surrounding area and we hear various sounds but can't differentiate between them but in night the surroundings are more quite as their less work and they are less sound and generally the sounds are in audible to us so the bell is more clearer at night.