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प्रश्न
If you place your ear close to an iron railing which is tapped some distance away, you hear the sound twice. Explain why?
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उत्तर
Sound travels in iron faster than in air so first the sound travelled in iron rail is heard and then the sound travelled in air is heard.
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संबंधित प्रश्न
Explain the terms crest and trough in relation to a transverse wave.
How does the following factor affect, if at all, the speed of sound in air:
Pressure of air
How does the following factor affect, if at all, the speed of sound in air:
Moisture in air
Complete the following sentence :
A transverse wave is composed of crest and ____________.
The time period of a simple pendulum is 2 s. Find its frequency.
Select the correct option:
The number of oscillations passing through a point in unit time is called:
What is meant by the term wave motion?
Does light travel faster in air than in water? Why?
How will the following factors affect the speed of sound in air:
Temperature of air.
How will the following factors affect the speed of sound in air:
Wind.
