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प्रश्न
Give a scientific reason.
In earlier times, people used to listen for the arrival of a distant train by putting their ear to the rail.
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उत्तर
- In the past, individuals would place their ear to the rail to detect the arrival of a distant train, as they understood that sound travels more quickly through solids than through gases.
- Thus, putting their ear to the rails used to give them the idea of the arrival time of a train in advance.
संबंधित प्रश्न
Name the factor that determines Loudness of the sound heard.
The safe limit of loudness of audible sound is
The unit of loudness is _______.
Two identical guitars are played by two persons to give notes of the same loudness and pitch. Will they differ in quality? Give reason for your answer.
Name the characteristic of the sound affected due to a change in its
(a) amplitude (b) waveform (c) frequency.
Two waves have frequencies 256 Hz and 512 Hz, but same amplitude. Compare their (i) loudness, and (ii) pitch
- Which of the following quality determines the loudness of a sound wave?
- wavelength
- frequency and
- amplitude
- How is loudness related to the quantity mentioned above in part (a)?
Explain the following and illustrate your answer by drawing appropriate diagram:
Pitch
Give scientific reason for the following:
When a nail is hammering appears to get higher and higher in pitch.
The same musical note when played on a piano and when played on a flute sounds different.
