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You recognize your friend by hearing his voice on a telephone. Explain.
Which wave property determines pitch?
When we change a feeble sound to a loud sound, we increase its :
Fig. shows three ways in which a string of length l in an instrument can vibrate.
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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)?
Is pitch same as frequency?
Draw a displacement-distance graph of a wave and mark on it, the amplitude of wave by the letter 'a' and wavelength of wave by the letter λ.
An observer sitting in line of two tanks watches the flashes of two tanks firing at each other at the same time, but he hears the sounds of two shots 2s and 3.5s after seeing the flashes. If distance between the two tanks is 510m, find the speed of sound.
Draw a displacement-time graph for water wave.
Sound travels in air:
Sound can travel through solids, gases, liquids, and even vacuum.
