Advertisements
Advertisements
प्रश्न
Define the following term:
Frequency
Define the term frequency.
Define Frequency?
Advertisements
उत्तर
The frequency of a particle executing S.H.M. is equal to the number of oscillations completed in one second.
APPEARS IN
संबंधित प्रश्न
The ratio of amplitude of two waves is 3:4. What is the ratio of their loudness?
State two conditions for an echo to take place
What do you understand by the loudness of sound?
State one important property of waves used for echo depth sounding.
In a longitudinal wave, compression and rarefaction are formed.
The quality of a sound depends on the amplitude of wave.
The pitch of a flute is decreased by ................... length of air column.
Sound can not travel in
The unit of loudness is _______.
Explain the mechanism of the formation of a longitudinal wave when the source vibrates in the air.
Which of the following determines the loudness of a sound wave?
State the factors that determine
(a) the pitch of a note.
(b) the loudness of the sound heard.
(c) the quality of the note.
How is the pitch of sound in a guitar changed if (a) thin wire is used, (b) wire under less tension is used?
- Which of the following quality determines the loudness of a sound wave?
- wavelength
- frequency and
- amplitude
- How is loudness related to the quantity mentioned above in part (a)?
If the amplitude of a wave is doubled, what will be the effect on its loudness?
What determines the pitch of a sound?
Two identical guitars are played by two persons to give notes of the same pitch. Will they differ in quality? Give a reason for your answer.
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.
It is observed that during march-past we hear a base drum distinctly from a distance compared to the side drums.
(i) Name the characteristics of sound associated with the above obervation.
(ii) Give a reason for the above observation.
How do you account for the fact that two strings can be used to give notes of the same pitch and loudness but of different quality?
When a gun is fired at a distance, why is it that the flash is seen almost instantaneously while the sound is heard a little later?
Which characteristics of sound will change if there is a change in its amplitude and its waveform.
What is meant by the ‘loudness’ of a sound? How is it related to the intensity?
Two musical notes of the same pitch and loudness are played on a violin and a piano. Their waveforms are as shown in the figure below:
The diagram below shows three ways in which the string of an instrument can vibrate.
(i) Which of the above diagrams shows the fundamental note?
(ii) Which has the frequency 4 times that of the fundamental?
(iii) State the ratio between the frequency of the first and second.
If ______ of sound is decreased, its loudness also decreases.
Give scientific reasons.
In earlier times, people used to listen for the arrival of a distant train by putting their ear to the rail.
