Advertisements
Advertisements
प्रश्न
The sound from a mosquito is produced when it vibrates its wings at an average rate of 500 vibrations per second. What is the time period of the vibration?
Advertisements
उत्तर
The time required to complete one oscillation is known as the time period. It is given by the inverse of the frequency.
Time period = `1/"Frequency of oscillation"`
Frequency of oscillations = 500 Hz
Time period = `1/500` = 0.002 s
So, the time period of vibration = 0.002 s.
APPEARS IN
संबंधित प्रश्न
Name the phenomenon that causes a loud sound when the stem of a vibrating tuning fork is kept pressed on the surface of a table.
Obtain relationship between the time period and frequency.
If the amplitude of a wave is doubled, what will be the effect on its loudness?
Figure shows four waves A, B, C, and D

Name the wave which shows
(a) a note from a musical instrument,
(b) a soft note
(c) a shrill note.
How is the pitch of sound in a guitar changed if (a) thin wire is used, (b) wire under less tension is used?
A man playing a flute is able to produce notes of different frequencies. If he closes the holes near his mouth, will the pitch of the note produced, increase or decrease? Give a reason.
Give a scientific reason.
In earlier times, people used to listen for the arrival of a distant train by putting their ear to the rail.
Give a scientific reason.
The sounds generated by a tabla and a sitar are different.
Give a scientific reason.
We can hear the movement of a mosquito’s wings but we cannot hear the movement of our hands.
The loudness of a sound depends on its pitch.
