Question

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

Answer 1

We know that speed, pitch, loudness all are initiated with a vibration. During the day, there are number of vibrations around us. So, the sound coming from the clock gets disturbed and the amplitude of vibrations becomes small.
But during the night, there are not such multiple vibrations in the environment. So, the sound is more clear.