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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
Name the two kinds of waves in form of which sound travels in a medium.
What is a longitudinal wave? In which medium: solid, liquid or gas, can it be produced?
How does the following factor affect, if at all, the speed of sound in air:
Temperature of air
Complete the following sentence :
A longitudinal wave is composed of compression and ____________.
Complete the following sentence :
A transverse wave is composed of crest and ____________.
A longitudinal wave travels at a speed of 0.3 m s-1 and the frequency of wave is 20 Hz. Find the separation between two consecutive compressions.
Select the correct option:
The wavelength is the linear distance between the:
Is it possible to hear your friend's voice in vacuum? Give reason for your answer.
How will the following factors affect the speed of sound in air:
Pressure of air.
How will the following factors affect the speed of sound in air:
Temperature of air.
