Advertisements
Advertisements
Question
The town hall building is situated close to Boojho’s house. There is a clock on the top of the town hall building which rings the bell every hour. Boojho has noticed that the sound of the clock appears to be much clearer at night. Explain.
Advertisements
Solution
We know that speed, pitch and loudness are all initiated with a vibration. During the day, there are a number of vibrations around us. So, the sound coming from the clock gets disturbed and amplitude of vibrations becomes small.
But during the night, there are not such multiple vibrations in the environment. So, sound is more clear. Further, the dew factor at night increases the speed of sound as moisture level increases.
APPEARS IN
RELATED QUESTIONS
Name the subjective property of sound related to its frequency.
How is it possible to detect the filling of a bottle under a water tap by hearing the sound at a distance?
If the amplitude of a sound is halved, its loudness becomes ______.
State the factor that determine the pitch of a note.
Two sounds A and B are of same amplitude, same wave forms but of frequencies f and 2f respectively. Then ______.
What is an ultrasonic sound?
- Define pitch.
- Two wires AB and CD of same length are stretched by same amount. Which wire will produce a sound of greater pitch on plucking?
- Give a reason for your answer.
The Pitch of sound is determined by its ______.
The pitch is the characteristic of sound that enables us to distinguish between a flat sound and a shrill sound.
Find the odd one out.
