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प्रश्न
The pitch of a flute is decreased by ................... length of air column.
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उत्तर
increasing
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संबंधित प्रश्न
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 × 108 ms−1.
In which units is the loudness of sound measured?
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.
Obtain relationship between the time period and frequency.
Which of the following determines the loudness of a sound wave?
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?
What is the noise? Give an example.
If ______ of sound is decreased, its loudness also decreases.
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.
