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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 x 108 ms-1
What is an echo
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.
When sound propagates in air, it does not carry energy with it.
Match the following
| column A | column B |
| (A) Amplitude | (1) frequency |
| (B) Frequency | (2) amplitude |
| (C) Loudness | (3)maximum displacement on either side |
| (D) Pitch | (4) presence of other frequencies |
| (E) Waveform | (5) 1/ time period |
Figure shows two jars A and B containing water up to different heights. Which will produce sound of higher pitch when air is blown on them?
State three factors on which loundess of sound heard by a listener depends.
Draw a diagram to show the wave pattern of high pitch note and a low pitch note, but of the same loudness.
Give a scientific reason.
The sounds generated by a tabla and a sitar are different.
