Advertisements
Advertisements
प्रश्न
If the amplitude of a wave is doubled, what will be the effect on its loudness?
Advertisements
उत्तर
The loudness of sound is directly proportional to the square of the amplitude of waves.
Loudness ∝ (amplitude)2 When the amplitude is doubled loudness becomes (2)2 = 4 times
संबंधित 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?
An enemy plane is at a distance of 300 km from a radar. In how much time the radar will be able to detect the plane? Take velocity of radio waves as 3 x 108 ms-1
Name the factor that determines Pitch of the note.
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.
The ratio of the amplitudes of two waves is 3 : 4. What is the ratio of their loudness?
The frequency is measured in second.
The quality of a sound depends on the amplitude of wave.
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?
How is loudness related to the amplitude of wave?
Name the characteristic of the sound affected due to a change in its
(a) amplitude (b) waveform (c) frequency.
- 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)?
State three factors on which loundess of sound heard by a listener depends.
How does the two sounds of same loudness and same pitch produced by different instruments differ? Draw diagrams to illustrate your answer.
Give scientific reason for the following:
Windows sometimes rattle when the low notes of a pipe organ are sounded.
Give a scientific reason.
The sounds generated by a tabla and a sitar are different.
Give scientific reason.
In earlier times, people used to listen for the arrival of a distant train by putting their ear to the rail.
Give scientific reasons.
In earlier times, people used to listen for the arrival of a distant train by putting their ear to the rail.
