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प्रश्न
Write true or false for a given statement.
Waveforms of two different stringed instruments can be the same.
विकल्प
True
False
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उत्तर
False.
Waveforms of two different stringed instruments cannot be the same.
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संबंधित प्रश्न
Write true or false for a given statement.
A sound is a form of energy.
Draw a graph between displacement from mean position and time for a body executing free vibrations in vacuum.
What are wavelength, frequency, time period and amplitude of a sound wave?
Fig. shows three ways in which a string of length l in an instrument can vibrate.
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 |
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| (i) | (ii) | (iii) |
- Which of the diagram shows the principle note?
- Which vibration has the frequency four times that of the first?
- Which vibration is of the longest wavelength?
- What is the ratio of the frequency of the vibration in (i) and (ii)?
A cannon is fired at A (see diagram). An observer at B hears two sounds. The first sound is heard after 1 second and the second 3s after the observer sees the flash. (Velocity of sound = 340 ms−1)
(i) Why does the observer see the flash before he hears the sound?
(ii) Calculate the distance x between the observer and the wall.
Draw a displacement-time graph for water wave.
Vibration of object produces ______.
Through which medium sound travels faster, iron or water? Give reason.
