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संबंधित प्रश्न
| Column A | Column B |
| (a) Vibrations cause | (1) absorb sound |
| (b) A shriller sound is | (2) second |
| (c) Unit of frequency | (3) sound |
| (d) Unit of time period | (4) of high pitch |
| (e) Curtains | (5) hertz |
On what factor does the loudness of a sound depend ?
In fig. 2 two musical notes of the same pitch and same loudness are played on a violin and on a piano. Their wave forms are as shown in the diagram below. Explain why the wave patterns are different.
Select the correct option:
In case of longitudinal waves, the particles of the medium vibrate:
Select the correct option:
A part of the longitudinal wave in which particles of the medium are closer than the normal particles is called:
What is sound? Explain with example how does sound travel in a medium.
Waves created by Earth Quake are Infrasonic.
Lightning can be seen at the moment when it occurs. Paheli observes lightning in her area. She hears the sound 5 s after she observed lightning. How far is she from the place where lightning occurs?
(speed of sound = 330 m/s).
