Advertisements
Advertisements
प्रश्न
Name three characteristics of a musical sound.
Advertisements
उत्तर
Sounds can be distinguished from one another by the following three different characteristics:
- loudness
- pitch or shrillness, and
- quality or timbre
संबंधित प्रश्न
The ratio of the amplitudes of two waves is 3 : 4. What is the ratio of their loudness?
The ratio of the amplitude of two waves is 3 : 4. What is the ratio of their Frequencies?
A person is standing at the seashore. An observer on the ship which is anchored in between a vertical cliff and the person on the shore fires a gun. The person on the shore hears two sounds, 2 seconds and 3 seconds after seeing the smoke of the fired gun. If the speed of sound in the air is 320 ms-1 then calculate:
1) the distance between the observer on the ship and the person on the shore.
2) the distance between the cliff and the observer on the ship.
The frequency is measured in second.
The pitch of sound depends on frequency.
The pitch of a stringed instrument is increased by .................. tension in string.
Explain the mechanism of the formation of a longitudinal wave when the source vibrates in the air.
If the amplitude of a wave is doubled, what will be the effect on its loudness?
Why is the loudness of sound heard by a plucked wire increased when mounted on a sound board?
Two musical notes of the same pitch and same loudness are played on two different instruments. Their wave patterns are as shown in figure.
How do they differ in
(a) loudness,
(b) pitch and
(c) quality
Two waves of the same pitch have amplitudes in the ratio 1 : 3 What will be the ratio of their
- loudness,
- pitch?
Name the unit in which loudness of sound is measured.
State three factors on which loundess of sound heard by a listener depends.
Give scientific reason for the following:
When a nail is hammering appears to get higher and higher in pitch.
The same musical note when played on a piano and when played on a flute sounds different.
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?
What is the noise? Give an example.
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.
We can hear the movement of a mosquito’s wings but we cannot hear the movement of our hands.
